/*
 * Manabi Route Design System 2026
 * A shared, light learning studio layer loaded after the legacy styles.
 * Tokens -> foundations -> layout -> components -> pages -> accessibility -> responsive.
 */

:root {
  --color-brand-primary: #103457;
  --color-brand-secondary: #2e8db7;
  --color-accent: #ef741c;
  --color-accent-strong: #c9510b;
  --color-success: #13795b;
  --color-success-soft: #e9f7f1;
  --color-warning: #985b08;
  --color-warning-soft: #fff6df;
  --color-danger: #a7352b;
  --color-danger-soft: #fff0ee;
  --color-info: #1e66c8;
  --color-info-soft: #edf5ff;
  --color-background: #f7fafc;
  --color-background-warm: #fffaf2;
  --color-surface: #ffffff;
  --color-surface-soft: #f0f7fa;
  --color-text-primary: #142f4b;
  --color-text-secondary: #4b6379;
  --color-border: #cedce8;
  --color-border-strong: #9fb6c9;
  --color-disabled: #778897;
  --focus-ring: #f4a33a;
  --route-line: #b9d7e7;
  --route-current: #2e8db7;
  --route-complete: #16866a;

  --font-sans: "BIZ UDPGothic", "BIZ UDPゴシック", "Noto Sans JP",
    "Yu Gothic UI", "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo,
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "BIZ UDPGothic", "BIZ UDPゴシック", "Noto Sans JP",
    "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --radius-control: .875rem;
  --radius-card: 1.25rem;
  --radius-hero: 1.75rem;
  --shadow-card: 0 1px 2px rgba(16, 52, 87, .04), 0 12px 32px rgba(16, 52, 87, .08);
  --shadow-float: 0 20px 54px rgba(16, 52, 87, .14);
  --content-wide: 1280px;
  --content-reading: 760px;
  --header-height: 74px;
  --z-header: 600;
  --z-scrim: 700;
  --z-drawer: 710;
  --z-modal: 900;

  /* Backward-compatible aliases used by existing pages. */
  --navy: var(--color-text-primary);
  --navy-soft: var(--color-text-secondary);
  --blue: var(--color-brand-secondary);
  --blue-deep: #1d6f9a;
  --blue-soft: var(--color-info-soft);
  --teal: #72bfd0;
  --teal-deep: var(--color-success);
  --teal-soft: var(--color-success-soft);
  --gold: var(--color-accent);
  --gold-deep: var(--color-accent-strong);
  --gold-soft: #fff2e7;
  --ok: var(--color-success);
  --ok-soft: var(--color-success-soft);
  --warn: var(--color-warning);
  --warn-soft: var(--color-warning-soft);
  --bad: var(--color-danger);
  --bad-soft: var(--color-danger-soft);
  --bg: var(--color-background);
  --card: var(--color-surface);
  --border: var(--color-border);
  --border-strong: var(--color-border-strong);
  --radius-lg: var(--radius-card);
  --radius-md: var(--radius-control);
  --shadow-sm: 0 1px 5px rgba(16, 52, 87, .07);
  --shadow-md: var(--shadow-card);
}

/* Foundations */
html {
  min-width: 320px;
  scroll-padding-top: calc(var(--header-height) + 1rem);
  color-scheme: light;
  background: var(--color-background);
}
body {
  min-width: 320px;
  overflow-x: clip;
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  background:
    radial-gradient(circle at 92% 3%, rgba(114, 191, 208, .12), transparent 25rem),
    radial-gradient(circle at 5% 24%, rgba(239, 116, 28, .07), transparent 23rem),
    linear-gradient(180deg, #fbfdff 0, var(--color-background) 44%, #fffdf9 100%);
  background-attachment: scroll;
}
body.mobile-nav-open { overflow: hidden; }
*, *::before, *::after { min-width: 0; }
img, svg, video, iframe, canvas { max-width: 100%; }
img, video { height: auto; }
main, section, article, aside, form, fieldset, table { min-width: 0; }
h1, h2, h3, h4 {
  color: var(--color-text-primary);
  font-family: var(--font-display);
  line-height: 1.4;
  text-wrap: balance;
  overflow-wrap: anywhere;
}
h1 { font-size: clamp(2rem, 4.8vw, 4.75rem); }
h2 { font-size: clamp(1.55rem, 3vw, 2.65rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }
p, li, dd, label, input, textarea, select, button { overflow-wrap: anywhere; }
p, li, dd { max-width: 74ch; }
.lead { color: var(--color-text-secondary); font-size: clamp(1.0625rem, 1.7vw, 1.2rem); }
.muted, small, .small { color: var(--color-text-secondary); }
a { text-underline-offset: .2em; }
a:hover { text-decoration: underline; }
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: .375rem;
}
::selection { color: var(--color-text-primary); background: #cfeeff; }
[hidden] { display: none; }

/* Shared layout */
.container, .admin-container {
  width: min(var(--content-wide), calc(100% - 2rem));
  margin-inline: auto;
}
.container { padding-block: clamp(1rem, 2.5vw, 2.25rem) 6rem; }
.admin-container { padding-block: 1.25rem 4rem; }
.page-grid, .grid-2, .grid-3, .grid-4,
.admin-cols-2, .admin-cols-3, .compact-cols { align-items: start; }
.panel, .card, .mini-card, .side-card, .price-card, .auth-card, .auth-side,
.admin-card, .kpi-card, .stat-card, .next-card, .route-card-s,
.family-child-card, .dekiru-focus-card, .dekiru-outcome-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}
.panel, .card, .admin-card, .dekiru-focus-card, .dekiru-outcome-card {
  padding: clamp(1.25rem, 3vw, 2rem);
}
.section-heading, .section-head, .koto-section-heading {
  max-width: 860px;
  margin-inline: auto;
}
.section-heading p, .section-head p, .koto-section-heading p { color: var(--color-text-secondary); }

/* Official brand and common header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid rgba(16, 52, 87, .12);
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 5px 22px rgba(16, 52, 87, .06);
  backdrop-filter: none;
}
.site-header-inner {
  width: min(1440px, calc(100% - 2rem));
  min-height: var(--header-height);
  gap: 1rem;
}
.brand { gap: .75rem; color: var(--color-text-primary); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  overflow: hidden;
  padding: 0;
  border: 1px solid #9fb2c7;
  border-radius: 14px;
  background: #111b31;
  box-shadow: 0 5px 14px rgba(16, 52, 87, .14);
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand-text strong { color: var(--color-text-primary); font-size: 1.05rem; font-weight: 850; }
.brand-text small { color: var(--color-text-secondary); font-size: .72rem; font-weight: 650; }
.site-nav-area { gap: .75rem; }
.site-nav { gap: .125rem; }
.site-nav a, .nav-link, .nav-guide-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: .55rem .8rem;
  color: var(--color-text-primary);
  border-radius: .75rem;
  font-size: .875rem;
  font-weight: 750;
}
.site-nav a:hover, .nav-link:hover, .nav-guide-button:hover {
  color: var(--color-brand-primary);
  background: var(--color-surface-soft);
  text-decoration: none;
}
.nav-toggle { min-width: 48px; min-height: 48px; border-color: var(--color-border); background: #fff; }
.nav-drawer-close { display: none; }
.nav-scrim {
  position: fixed;
  z-index: var(--z-scrim);
  inset: 0;
  visibility: hidden;
  opacity: 0;
  background: rgba(14, 37, 61, .34);
  transition: opacity .18s ease, visibility .18s ease;
}
body.mobile-nav-open .nav-scrim { visibility: visible; opacity: 1; }

/* Controls */
.button, button, .btn {
  min-height: 48px;
  padding: .75rem 1.25rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  color: var(--color-text-primary);
  box-shadow: 0 2px 7px rgba(16, 52, 87, .07);
  font-size: 1rem;
  font-weight: 780;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.button:hover, button:hover, .btn:hover {
  border-color: var(--color-brand-secondary);
  box-shadow: 0 7px 18px rgba(16, 52, 87, .11);
  text-decoration: none;
  transform: translateY(-1px);
}
.button.primary, button.primary, .primary-inline, .nav-cta {
  border-color: transparent;
  background: linear-gradient(135deg, #f68b3c, var(--color-accent) 55%, var(--color-accent-strong));
  color: #fff;
  box-shadow: 0 9px 22px rgba(201, 81, 11, .24);
}
.button.primary:hover, button.primary:hover, .primary-inline:hover, .nav-cta:hover {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #fff;
}
.button.danger, button.danger {
  border-color: #d99a95;
  background: var(--color-danger-soft);
  color: var(--color-danger);
  box-shadow: none;
}
.button.ghost { border-color: transparent; background: transparent; box-shadow: none; }
.button:disabled, button:disabled, [aria-disabled="true"] {
  border-color: #d4dde4;
  background: #eef1f3;
  color: var(--color-disabled);
  box-shadow: none;
  cursor: not-allowed;
}
input:not([type]), input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="search"], input[type="url"], input[type="tel"],
input[type="date"], input[type="time"], input[type="datetime-local"], textarea, select {
  min-height: 52px;
  padding: .75rem 1rem;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: #fff;
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
}
textarea { min-height: 8rem; }
input::placeholder, textarea::placeholder { color: #65798b; opacity: 1; }
input:focus, textarea:focus, select:focus {
  border-color: var(--color-brand-secondary);
  box-shadow: 0 0 0 4px rgba(46, 141, 183, .16);
}
label { color: var(--color-text-primary); font-size: .95rem; }
.field-error {
  display: block;
  margin-top: .4rem;
  color: var(--color-danger);
  font-size: .875rem;
  font-weight: 750;
}

/* Status components: icon/shape plus color */
.alert, .system-announcement, .maintenance-inline-banner {
  position: relative;
  padding: 1rem 1rem 1rem 3.1rem;
  border-width: 1px;
  border-radius: var(--radius-control);
  color: var(--color-text-primary);
}
.alert::before {
  position: absolute;
  left: 1rem;
  top: .95rem;
  display: grid;
  width: 1.5rem;
  height: 1.5rem;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "i";
  font-size: .8rem;
  font-weight: 900;
}
.alert.success { border-color: #9ed5c1; background: var(--color-success-soft); color: #105e48; }
.alert.success::before { content: "✓"; }
.alert.warning { border-color: #e7c887; background: var(--color-warning-soft); color: #79500e; }
.alert.warning::before { content: "!"; }
.alert.error { border-color: #e2aaa5; background: var(--color-danger-soft); color: #842e27; }
.alert.error::before { content: "×"; }
.alert.info { border-color: #accbec; background: var(--color-info-soft); color: #174f92; }
.empty-state {
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: var(--color-text-secondary);
}
.chip, .badge, .status-chip, .eyebrow {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: var(--color-surface-soft);
}

/* Homepage: a light future learning studio */
.page-index.public-app { background: var(--color-background); }
.page-index .container { width: 100%; max-width: none; padding: 0 0 5rem; overflow: clip; }
.page-index .site-header, .page-index.mobile-nav-open .site-header {
  border-bottom-color: rgba(16, 52, 87, .12);
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 5px 22px rgba(16, 52, 87, .06);
}
.page-index .site-header .brand, .page-index .site-nav a, .page-index .nav-link { color: var(--color-text-primary); }
.page-index .site-header .brand-text strong { color: var(--color-text-primary); text-shadow: none; }
.page-index .site-header .brand-text small { color: var(--color-text-secondary); text-shadow: none; }
.koto-cosmic-hero {
  position: relative;
  min-height: 0;
  padding: clamp(3rem, 7vw, 6.5rem) 1rem clamp(4rem, 7vw, 7rem);
  overflow: clip;
  color: var(--color-text-primary);
  background:
    radial-gradient(circle at 84% 12%, rgba(114, 191, 208, .22), transparent 22rem),
    radial-gradient(circle at 12% 2%, rgba(239, 116, 28, .11), transparent 21rem),
    linear-gradient(180deg, #fff 0, #f4fbfd 54%, #fffaf4 100%);
}
.koto-cosmic-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(46, 141, 183, .18) 1px, transparent 1.5px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.2), transparent 45%);
}
.koto-cosmic-sky, .koto-aurora, .koto-route-line, .koto-floating-card-stack,
.koto-stage-orb { display: none; }
.koto-cosmic-hero .koto-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1180px, 100%);
  margin-inline: auto;
  gap: 2rem;
}
.koto-cosmic-hero .koto-hero-copy {
  position: relative;
  isolation: isolate;
  max-width: 1060px;
  margin-inline: auto;
  color: var(--color-text-primary);
  text-align: center;
  text-shadow: none;
}
.page-index .koto-cosmic-hero .koto-cosmic-sky,
.page-index .koto-cosmic-hero .koto-aurora,
.page-index .koto-cosmic-hero .koto-route-line-one,
.page-index .koto-cosmic-hero .koto-stage-orb {
  display: block;
}
.page-index .koto-cosmic-hero .koto-cosmic-sky,
.page-index .koto-cosmic-hero .koto-aurora {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.page-index .koto-cosmic-hero .koto-cosmic-sky {
  opacity: .72;
  background-image:
    radial-gradient(circle, rgba(46, 141, 183, .34) 0 1px, transparent 1.6px),
    radial-gradient(circle, rgba(244, 124, 34, .23) 0 1px, transparent 1.7px);
  background-size: 69px 69px, 113px 113px;
  background-position: 0 0, 31px 17px;
  mask-image: linear-gradient(#000 0 62%, transparent 94%);
}
.page-index .koto-cosmic-hero .koto-cosmic-sky i {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(104, 190, 214, .14), 0 0 24px rgba(46, 141, 183, .52);
  animation: kotoHeroNodeBreath 4.8s ease-in-out infinite;
}
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(1) { left: 7%; top: 19%; animation-delay: -1.1s; }
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(2) { left: 25%; top: 10%; animation-delay: -3.4s; }
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(3) { left: 45%; top: 27%; animation-delay: -.7s; }
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(4) { right: 29%; top: 12%; animation-delay: -2.2s; }
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(5) { right: 7%; top: 22%; animation-delay: -3.9s; }
.page-index .koto-cosmic-hero .koto-cosmic-sky i:nth-child(6) { right: 17%; top: 53%; animation-delay: -1.6s; }
.page-index .koto-cosmic-hero .koto-aurora span {
  position: absolute;
  width: 68%;
  height: 34%;
  border-radius: 50%;
  opacity: .17;
  filter: blur(48px);
  transform: translate3d(0, 0, 0) rotate(-7deg);
  animation: kotoHeroAurora 14s ease-in-out infinite alternate;
}
.page-index .koto-cosmic-hero .koto-aurora span:first-child {
  left: -21%;
  top: 17%;
  background: linear-gradient(90deg, #62c2cf, #6e91ec 55%, transparent);
}
.page-index .koto-cosmic-hero .koto-aurora span:last-child {
  right: -22%;
  top: 29%;
  background: linear-gradient(90deg, transparent, #9d78df 35%, #ff9c62);
  animation-delay: -6s;
}
.page-index .koto-cosmic-hero .koto-route-line-one {
  position: absolute;
  top: 3.5rem;
  left: 50%;
  z-index: 0;
  width: min(76%, 1260px);
  height: 260px;
  opacity: .46;
  pointer-events: none;
  transform: translateX(-50%);
}
.page-index .koto-cosmic-hero .koto-route-line-one::before {
  border-top-color: rgba(46, 141, 183, .42);
  animation: kotoHeroOrbit 18s linear infinite;
}
.page-index .koto-cosmic-hero .koto-route-line-one i {
  border-color: #fff;
  background: #2e8db7;
  box-shadow: 0 0 0 5px rgba(46, 141, 183, .12), 0 0 20px rgba(46, 141, 183, .4);
  animation: kotoHeroRouteNode 3.8s ease-in-out infinite;
}
.page-index .koto-cosmic-hero .koto-route-line-one i:nth-child(even) {
  background: #f47c22;
  box-shadow: 0 0 0 5px rgba(244, 124, 34, .11), 0 0 20px rgba(244, 124, 34, .38);
  animation-delay: -1.9s;
}
.koto-route-convergence {
  position: absolute;
  top: -2.6rem;
  left: 50%;
  z-index: -1;
  width: min(1180px, calc(100% + 14rem));
  height: 14rem;
  opacity: .62;
  pointer-events: none;
  transform: translateX(-50%);
}
.koto-route-convergence svg { display: block; width: 100%; height: 100%; overflow: visible; }
.koto-route-convergence path { fill: none; vector-effect: non-scaling-stroke; }
.koto-route-convergence .is-branch {
  stroke: url(#koto-hero-route-gradient);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 1300;
  stroke-dashoffset: 1300;
}
.koto-route-convergence .is-one,
.koto-route-convergence .is-three { stroke-width: 2.8; }
.koto-route-convergence .is-spine {
  stroke: #f47c22;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 110;
  stroke-dashoffset: 110;
}
.koto-route-convergence .is-core-ring {
  fill: rgba(255, 255, 255, .72);
  stroke: #f47c22;
  stroke-width: 2;
  transform-box: fill-box;
  transform-origin: center;
}
.koto-route-convergence .is-core { fill: #f47c22; }
.koto-hero-copy.is-visible .koto-route-convergence .is-branch { animation: kotoHeroRouteDraw 1.8s cubic-bezier(.2,.75,.2,1) .08s forwards; }
.koto-hero-copy.is-visible .koto-route-convergence .is-spine { animation: kotoHeroRouteDraw .7s ease .95s forwards; }
.koto-hero-copy.is-visible .koto-route-convergence .is-core-ring { animation: kotoHeroCorePulse 2.8s ease-in-out 1.1s infinite; }
.koto-cosmic-hero .koto-kicker {
  position: relative;
  z-index: 1;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid #b7d6e5;
  background: #f3fbfd;
  color: var(--color-text-primary);
  box-shadow: none;
}
.page-index .koto-cosmic-hero .koto-kicker {
  overflow: hidden;
  border-color: rgba(96, 165, 191, .42);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 10px 32px rgba(16, 52, 87, .08), inset 0 1px rgba(255, 255, 255, .9);
}
.page-index .koto-cosmic-hero .koto-kicker::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 24%, rgba(255,255,255,.95) 45%, transparent 66%);
  transform: translateX(-140%);
}
.page-index .koto-hero-copy.is-visible .koto-kicker::after { animation: kotoHeroKickerSweep 1.15s ease 1.35s both; }
.koto-cosmic-hero .koto-kicker b { color: var(--color-brand-primary); }
.koto-cosmic-hero h1 {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin-inline: auto;
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6.1vw, 5.5rem);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -.045em;
  text-shadow: none;
}
.cosmic-showcase-title h2,
.cosmic-preview-cards article > strong { font-family: var(--font-sans); }
.koto-cosmic-hero h1 span, .koto-cosmic-hero h1 em { color: var(--color-text-primary); }
.koto-cosmic-hero h1 em { color: var(--color-accent-strong); font-style: normal; }
.page-index .koto-cosmic-hero .koto-hero-line {
  position: relative;
  transform-origin: 50% 100%;
}
.page-index .koto-cosmic-hero .koto-hero-line:first-child {
  text-shadow: 0 15px 38px rgba(16, 52, 87, .12);
}
.page-index .koto-cosmic-hero .koto-hero-line:last-child::after {
  content: "";
  position: absolute;
  left: 13%;
  bottom: -.12em;
  width: 74%;
  height: clamp(3px, .35vw, 6px);
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, #63bdd2 18%, #f47c22 52%, #886be2 82%, transparent);
  box-shadow: 0 0 20px rgba(244, 124, 34, .28);
  opacity: 0;
  transform: scaleX(.08);
  transform-origin: 50% 50%;
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-index .koto-cosmic-hero h1 em {
    background: linear-gradient(96deg, #ffad74 0%, #f26f24 30%, #f47c22 48%, #7f67da 70%, #ffad74 100%);
    background-size: 240% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    animation: kotoHeroOutcomeFlow 8s ease-in-out 2s infinite;
  }
}
.page-index .koto-hero-copy .koto-kicker,
.page-index .koto-hero-copy .koto-hero-line,
.page-index .koto-hero-copy > p,
.page-index .koto-hero-copy .koto-hero-actions,
.page-index .koto-hero-copy .koto-trust-row {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
}
.page-index .koto-hero-copy.is-visible .koto-kicker { animation: kotoHeroReveal .72s cubic-bezier(.2,.85,.2,1) .2s both; }
.page-index .koto-hero-copy.is-visible .koto-hero-line:first-child { animation: kotoHeroTitleReveal 1s cubic-bezier(.16,.85,.24,1) .48s both; }
.page-index .koto-hero-copy.is-visible .koto-hero-line:last-child { animation: kotoHeroTitleReveal 1.05s cubic-bezier(.16,.85,.24,1) .78s both; }
.page-index .koto-hero-copy.is-visible .koto-hero-line:last-child::after { animation: kotoHeroRouteLock .9s cubic-bezier(.2,.85,.25,1) 1.55s both; }
.page-index .koto-hero-copy.is-visible > p { animation: kotoHeroReveal .75s ease 1.12s both; }
.page-index .koto-hero-copy.is-visible .koto-hero-actions { animation: kotoHeroReveal .75s ease 1.28s both; }
.page-index .koto-hero-copy.is-visible .koto-trust-row { animation: kotoHeroReveal .75s ease 1.42s both; }
.koto-cosmic-hero .koto-hero-copy > p {
  max-width: 780px;
  margin: 1.5rem auto 0;
  color: var(--color-text-secondary);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.8;
  text-shadow: none;
}
.koto-cosmic-hero .koto-trust-row { justify-content: center; margin-top: 1.25rem; }
.koto-cosmic-hero .koto-trust-row span {
  padding: .5rem .75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #fff;
  color: var(--color-text-secondary);
  font-size: .82rem;
}
.koto-cosmic-hero .koto-hero-stage {
  display: grid;
  width: min(1120px, 100%);
  margin-inline: auto;
  gap: 2rem;
}
.page-index .koto-cosmic-hero .koto-stage-orb {
  z-index: 0;
  filter: blur(1px);
  animation: kotoHeroOrbDrift 6.5s ease-in-out infinite alternate;
}
.page-index .koto-cosmic-hero .koto-stage-orb.is-orange {
  background: radial-gradient(circle, rgba(244,124,34,.24), rgba(244,124,34,0) 70%);
}
.page-index .koto-cosmic-hero .koto-stage-orb.is-blue {
  background: radial-gradient(circle, rgba(46,141,183,.26), rgba(46,141,183,0) 70%);
  animation-delay: -3.2s;
}
.koto-cosmic-hero .koto-device {
  width: min(900px, 100%);
  margin-inline: auto;
  padding: .5rem;
  border: 1px solid #bdd2e0;
  border-radius: var(--radius-hero);
  background: #edf6fa;
  box-shadow: var(--shadow-float);
  transform: none;
}
.page-index .koto-cosmic-hero .koto-device {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-color: rgba(104, 166, 194, .6);
  box-shadow: 0 30px 80px rgba(16, 52, 87, .15), 0 0 0 7px rgba(104, 188, 211, .06);
}
.page-index .koto-cosmic-hero .koto-device::after {
  content: "";
  position: absolute;
  inset: -45% -25%;
  z-index: 4;
  pointer-events: none;
  background: linear-gradient(112deg, transparent 42%, rgba(255,255,255,.5) 49%, transparent 57%);
  opacity: 0;
  transform: translateX(-72%);
}
.page-index .koto-hero-stage.is-visible .koto-device { animation: kotoHeroDeviceArrive .95s cubic-bezier(.16,.85,.25,1) .18s both; }
.page-index .koto-hero-stage.is-visible .koto-device::after { animation: kotoHeroDeviceSweep 5.8s ease 1.4s infinite; }
.page-index .koto-cosmic-hero .koto-hero-actions .primary {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 15px 32px rgba(244, 124, 34, .25);
}
.page-index .koto-cosmic-hero .koto-hero-actions .primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,.48) 48%, transparent 70%);
  transform: translateX(-130%);
  animation: kotoHeroCtaSweep 3.8s ease-in-out 2.2s infinite;
}

@keyframes kotoHeroReveal {
  from { opacity: 0; transform: translate3d(0, 22px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes kotoHeroTitleReveal {
  from { opacity: 0; clip-path: inset(0 100% 0 0); transform: translate3d(0, 30px, 0) scale(.985); }
  to { opacity: 1; clip-path: inset(0 -2% 0 0); transform: translate3d(0, 0, 0) scale(1); }
}
@keyframes kotoHeroRouteDraw { to { stroke-dashoffset: 0; } }
@keyframes kotoHeroRouteLock {
  from { opacity: 0; transform: scaleX(.08); }
  to { opacity: .92; transform: scaleX(1); }
}
@keyframes kotoHeroCorePulse {
  0%, 100% { opacity: .52; transform: scale(.78); }
  50% { opacity: 1; transform: scale(1.28); }
}
@keyframes kotoHeroOutcomeFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
@keyframes kotoHeroKickerSweep { to { transform: translateX(140%); } }
@keyframes kotoHeroNodeBreath {
  0%, 100% { opacity: .35; transform: scale(.72); }
  50% { opacity: 1; transform: scale(1.28); }
}
@keyframes kotoHeroAurora { to { transform: translate3d(7%, 5%, 0) rotate(-2deg) scale(1.08); } }
@keyframes kotoHeroOrbit { to { transform: rotate(368deg); } }
@keyframes kotoHeroRouteNode { 50% { transform: translateY(-6px) scale(1.14); } }
@keyframes kotoHeroOrbDrift { to { transform: translate3d(12px, -14px, 0) scale(1.12); } }
@keyframes kotoHeroDeviceArrive {
  from { opacity: 0; transform: translate3d(0, 38px, 0) scale(.975); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}
@keyframes kotoHeroDeviceSweep {
  0%, 63% { opacity: 0; transform: translateX(-72%); }
  70% { opacity: .2; }
  84%, 100% { opacity: 0; transform: translateX(72%); }
}
@keyframes kotoHeroCtaSweep {
  0%, 45% { transform: translateX(-130%); }
  70%, 100% { transform: translateX(130%); }
}

/* V113 — premium single-route hero.
   The previous version let decorative lines cross the headline and used a
   multi-colour text gradient. This version keeps the problem statement clean,
   then turns the solution itself into one strong, dark learning route. */
.page-index .koto-cosmic-hero {
  background:
    radial-gradient(circle at 12% 18%, rgba(244, 124, 34, .1), transparent 24rem),
    radial-gradient(circle at 88% 20%, rgba(46, 141, 183, .13), transparent 27rem),
    linear-gradient(180deg, #fff 0%, #f8fcfd 65%, #fffaf5 100%);
}
.page-index .koto-cosmic-hero::before {
  opacity: .7;
  background:
    linear-gradient(115deg, transparent 22%, rgba(104, 188, 211, .07) 48%, transparent 72%),
    linear-gradient(180deg, rgba(255,255,255,.12), transparent 68%);
  background-size: 140% 100%, 100% 100%;
  mask-image: none;
  animation: kotoPremiumBackdrop 12s ease-in-out infinite alternate;
}
.page-index .koto-cosmic-hero .koto-cosmic-sky,
.page-index .koto-cosmic-hero .koto-route-line-one { display: none; }
.page-index .koto-cosmic-hero .koto-aurora span {
  opacity: .08;
  filter: blur(58px);
}
.page-index .koto-cosmic-hero .koto-hero-copy {
  max-width: 1480px;
}
.page-index .koto-cosmic-hero h1 {
  max-width: 1380px;
  font-size: clamp(3.25rem, 5.65vw, 6.1rem);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.page-index .koto-cosmic-hero .koto-hero-problem {
  color: #0d2f52;
  text-shadow: 0 16px 36px rgba(13, 47, 82, .1);
}
.page-index .koto-cosmic-hero .koto-solution-band {
  position: relative;
  display: block;
  width: min(1180px, calc(100% - 1.5rem));
  margin: .32em auto 0;
  padding: .3em .55em .36em;
  overflow: hidden;
  border: 1px solid rgba(137, 188, 216, .52);
  border-radius: clamp(1.25rem, 2.5vw, 2.4rem);
  background:
    radial-gradient(circle at 10% 30%, rgba(59, 145, 181, .28), transparent 26%),
    radial-gradient(circle at 90% 65%, rgba(244, 124, 34, .2), transparent 28%),
    linear-gradient(112deg, #071f3d 0%, #0b3159 52%, #102544 100%);
  color: #fff;
  box-shadow: 0 28px 68px rgba(8, 37, 70, .22), inset 0 1px rgba(255, 255, 255, .14);
  isolation: isolate;
  opacity: 0;
  transform: translate3d(0, 18px, 0) scaleX(.92);
  transform-origin: center;
}
.page-index .koto-cosmic-hero .koto-solution-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 32%, rgba(255,255,255,.16) 48%, transparent 63%);
  transform: translateX(-125%);
}
.page-index .koto-cosmic-hero .koto-solution-band::after {
  content: "できるまでルート";
  position: absolute;
  right: 1.5rem;
  bottom: .75rem;
  z-index: 1;
  color: rgba(255, 255, 255, .36);
  font-family: var(--font-sans);
  font-size: clamp(.6rem, .8vw, .78rem);
  font-weight: 850;
  letter-spacing: .12em;
}
.page-index .koto-cosmic-hero .koto-hero-solution {
  position: relative;
  z-index: 2;
  display: block;
  color: #fff;
  text-shadow: 0 8px 26px rgba(0, 7, 21, .38);
}
.page-index .koto-cosmic-hero h1 .koto-hero-solution em {
  background: none;
  color: #fff;
  -webkit-text-fill-color: #fff;
  animation: none;
}
.page-index .koto-cosmic-hero h1 .koto-hero-solution strong {
  color: #ff9b55;
  -webkit-text-fill-color: #ff9b55;
  font: inherit;
  font-weight: 950;
}
.page-index .koto-cosmic-hero .koto-hero-line:last-child::after { display: none; }
.page-index .koto-solution-band .koto-route-convergence {
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  opacity: .27;
  transform: none;
}
.page-index .koto-solution-band .koto-route-convergence .is-branch {
  stroke: url(#koto-hero-route-gradient);
  stroke-width: 2.2;
}
.page-index .koto-solution-band .koto-route-convergence .is-spine { stroke: #ff9b55; }
.page-index .koto-solution-band .koto-route-convergence .is-core-ring {
  fill: rgba(7, 31, 61, .72);
  stroke: #ff9b55;
}
.page-index .koto-solution-band .koto-route-convergence .is-core { fill: #fff; }
.page-index .koto-hero-copy.is-visible .koto-solution-band {
  animation: kotoPremiumBandReveal .9s cubic-bezier(.16,.85,.24,1) .78s both;
}
.page-index .koto-hero-copy.is-visible .koto-solution-band::before {
  animation: kotoPremiumBandSweep 1.15s ease 1.48s both;
}
.page-index .koto-hero-copy.is-visible .koto-hero-solution {
  animation: kotoPremiumSolutionReveal .72s cubic-bezier(.18,.85,.25,1) 1.02s both;
}
.page-index .koto-cosmic-hero .koto-hero-actions {
  justify-content: center;
}
.page-index .koto-cosmic-hero .koto-trust-row {
  justify-content: center;
}

@keyframes kotoPremiumBackdrop {
  to { background-position: 100% 0, 0 0; }
}
@keyframes kotoPremiumBandReveal {
  from { opacity: 0; transform: translate3d(0, 18px, 0) scaleX(.92); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scaleX(1); }
}
@keyframes kotoPremiumSolutionReveal {
  from { opacity: 0; transform: translate3d(0, 22px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes kotoPremiumBandSweep {
  from { transform: translateX(-125%); }
  to { transform: translateX(125%); }
}

@media (max-width: 820px) {
  .page-index .koto-cosmic-hero h1 {
    font-size: clamp(2.35rem, 7.6vw, 3.6rem);
    line-height: 1.12;
  }
  .page-index .koto-cosmic-hero .koto-solution-band {
    width: 100%;
    padding: .45em .42em .52em;
    border-radius: 1.55rem;
  }
}
@media (max-width: 600px) {
  .page-index .koto-cosmic-hero h1 {
    font-size: clamp(2rem, 9.2vw, 2.65rem);
    line-height: 1.15;
  }
  .page-index .koto-cosmic-hero .koto-solution-band {
    margin-top: .42em;
    padding-inline: .3em;
    border-radius: 1.25rem;
  }
  .page-index .koto-cosmic-hero .koto-solution-band::after {
    right: .8rem;
    bottom: .45rem;
    font-size: .55rem;
  }
  .page-index .koto-solution-band .koto-route-convergence { opacity: .2; }
}
.koto-cosmic-hero .koto-device-screen { min-height: 0; border-radius: 1.25rem; background: #fff; }
.koto-cosmic-hero .koto-appbar { display: none; }
.koto-cosmic-hero .koto-app-logo, .koto-cosmic-hero .koto-appbar nav,
.koto-cosmic-hero .koto-device-welcome h2 { color: var(--color-text-primary); }
.koto-cosmic-hero .koto-device-welcome span { color: var(--color-success); }
.koto-cosmic-hero .koto-device-content { padding: clamp(1rem, 3vw, 1.75rem); }
.koto-cosmic-hero .koto-search-form {
  gap: 1rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: none;
}
.koto-cosmic-hero .koto-search-form > label, .koto-cosmic-hero .koto-time-field legend { color: var(--color-text-primary); }
.koto-cosmic-hero .koto-input-shell textarea {
  min-height: 110px;
  border: 2px solid #8fb6ca;
  background: #fff;
  color: var(--color-text-primary);
  font-size: 1.05rem;
}
.koto-cosmic-hero .koto-input-shell textarea::placeholder { color: #60778a; }
.koto-cosmic-hero .char-counter { color: var(--color-text-secondary); }
.koto-guided-keywords { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.koto-cosmic-hero .koto-guided-keywords > button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .15rem .65rem;
  min-height: 76px;
  padding: .8rem;
  /* Three scoped forced resets retire legacy neon declarations. */
  border: 1.5px solid var(--color-border) !important;
  background: #f9fcfd !important;
  color: var(--color-text-primary) !important;
  text-align: left;
  box-shadow: none;
}
.koto-cosmic-hero .koto-guided-keywords > button > span { grid-row: 1 / 3; background: transparent; color: var(--color-brand-secondary); }
.koto-cosmic-hero .koto-guided-keywords > button > b, .koto-cosmic-hero .koto-guided-keywords > button > small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.koto-cosmic-hero .koto-guided-keywords > button > b { color: var(--color-text-primary); }
.koto-cosmic-hero .koto-guided-keywords > button > small { color: var(--color-text-secondary); }
.koto-cosmic-hero .koto-guided-keywords > button:hover, .koto-cosmic-hero .koto-guided-keywords > button.is-guide-preview,
.koto-cosmic-hero .koto-guided-keywords > button.is-guide-active, .koto-cosmic-hero .koto-guided-keywords > button.is-selected {
  border-color: var(--color-brand-secondary) !important;
  background: #edf8fb !important;
  color: var(--color-text-primary) !important;
  box-shadow: 0 0 0 3px rgba(46, 141, 183, .12);
  transform: none;
}
.koto-cosmic-hero .first-visit-guide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem 1rem;
  border: 1px solid #aed8ce;
  border-radius: var(--radius-control);
  background: #eef9f5;
  color: var(--color-text-primary);
  box-shadow: none;
}
.koto-cosmic-hero .first-guide-copy { display: grid; gap: .15rem; }
.koto-cosmic-hero .first-guide-copy > span { color: var(--color-success); font-size: .78rem; font-weight: 850; }
.koto-cosmic-hero .first-guide-copy > strong { color: var(--color-text-primary); font-size: 1rem; }
.koto-cosmic-hero .first-guide-copy > small { color: var(--color-text-secondary); font-size: .82rem; }
.koto-cosmic-hero .first-visit-guide > button { min-height: 42px; border-color: var(--color-border); background: #fff; color: var(--color-text-primary); }
.koto-cosmic-hero .koto-time-pills span { border-color: var(--color-border); background: #fff; color: var(--color-text-primary); }
.koto-cosmic-hero .koto-time-pills input:checked + span {
  border-color: var(--color-brand-secondary);
  background: var(--color-info-soft);
  color: var(--color-brand-primary);
}
.koto-cosmic-hero .koto-search-submit { min-height: 58px; font-size: 1.05rem; }

.cosmic-live-showcase {
  display: grid;
  gap: 1.25rem;
  width: min(1120px, 100%);
  color: var(--color-text-primary);
}
.cosmic-journey {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto 1fr auto;
  gap: .65rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: #fff;
}
.cosmic-journey > div { display: flex; gap: .6rem; align-items: center; }
.cosmic-journey > div > b {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  place-items: center;
  border: 2px solid var(--route-line);
  border-radius: 50%;
  background: #fff;
  color: var(--color-brand-primary);
}
.cosmic-journey > div:first-child > b { border-color: var(--route-current); box-shadow: 0 0 0 5px rgba(46, 141, 183, .12); }
.cosmic-journey > div span { display: grid; }
.cosmic-journey strong { color: var(--color-text-primary); font-size: .9rem; }
.cosmic-journey small { color: var(--color-text-secondary); font-size: .75rem; }
.cosmic-journey > i { height: 2px; background: var(--route-line); }
.cosmic-showcase-title { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.cosmic-showcase-title > div { display: flex; align-items: center; gap: .65rem; }
.cosmic-showcase-title h2 { margin: 0; font-size: clamp(1.5rem, 3vw, 2.4rem); }
.cosmic-showcase-title > small { color: var(--color-text-secondary); }

/* The current homepage uses a light learning-studio background. Legacy mobile
   theme rules still painted each journey item navy, while these newer text
   tokens expected a light surface. Keep the journey deliberately light and
   give both lines explicit, measurable contrast at every breakpoint. */
.page-index .cosmic-journey strong {
  color: #103457;
  font-weight: 900;
  line-height: 1.35;
  white-space: normal;
  overflow-wrap: anywhere;
  text-shadow: none;
}
.page-index .cosmic-journey small {
  display: block;
  color: #405f77;
  font-weight: 750;
  line-height: 1.45;
  white-space: normal;
  overflow-wrap: anywhere;
  text-shadow: none;
}
.page-index .cosmic-showcase-title h2 {
  color: #103457;
  font-weight: 900;
  line-height: 1.35;
  text-shadow: none;
}
.page-index .cosmic-showcase-title > small {
  color: #405f77;
  font-weight: 750;
  text-shadow: none;
}
.page-index .cosmic-showcase-title > div > span {
  color: #d45a14;
  text-shadow: none;
}
.cosmic-preview-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.cosmic-preview-cards article {
  min-height: 155px;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-card);
}
.cosmic-preview-cards article > span, .cosmic-preview-cards article > small { color: var(--color-text-secondary); }
.cosmic-preview-cards article > strong { display: block; margin: .5rem 0; color: var(--color-text-primary); font-size: 1.15rem; }
.cosmic-preview-cards article > b { color: var(--color-brand-secondary); }

/* The three route-value cards intentionally keep their dark photographic
   backgrounds. Their content therefore needs an explicit inverse palette;
   inheriting the normal page text tokens made navy text disappear on navy. */
.page-index .cosmic-preview-cards article::before {
  background: linear-gradient(180deg, rgba(3, 12, 32, .08) 0%, rgba(3, 13, 35, .48) 48%, rgba(3, 12, 32, .94) 100%);
}
.page-index .cosmic-preview-cards article > span {
  padding: .35rem .55rem;
  border: 1px solid rgba(16, 52, 87, .14);
  background: #fff;
  color: #103457;
  font-size: .72rem;
  font-weight: 900;
  line-height: 1.25;
  text-shadow: none;
}
.page-index .cosmic-preview-cards article > strong {
  margin: .65rem 0 .45rem;
  color: #fff;
  font-size: clamp(1.08rem, 1.45vw, 1.28rem);
  font-weight: 900;
  line-height: 1.4;
  text-shadow: 0 2px 10px rgba(0, 8, 28, .82);
}
.page-index .cosmic-preview-cards article > small {
  color: #eef6ff;
  font-size: .78rem;
  font-weight: 750;
  line-height: 1.55;
  text-shadow: 0 2px 8px rgba(0, 8, 28, .88);
}
.page-index .cosmic-preview-cards article > b {
  right: .75rem;
  bottom: .75rem;
  padding: .28rem .48rem;
  border: 1px solid #9fc7ff;
  border-radius: .5rem;
  background: #082b50;
  color: #fff;
  font-size: .7rem;
  font-weight: 900;
  line-height: 1.2;
  text-shadow: none;
}
.cosmic-demo-player {
  display: grid;
  grid-template-columns: minmax(210px, .55fr) minmax(0, 1.45fr);
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-hero);
  background: #edf6fa;
  box-shadow: var(--shadow-card);
}
.cosmic-player-side { display: grid; gap: .65rem; padding: .75rem; }
.cosmic-player-side small, .cosmic-player-side span { color: var(--color-text-secondary); }
.cosmic-player-side strong { color: var(--color-text-primary); }
.cosmic-player-side em { color: var(--color-accent-strong); font-style: normal; font-weight: 850; }
.cosmic-demo-player video { width: 100%; aspect-ratio: 16 / 9; border-radius: 1rem; background: #142033; object-fit: cover; }
.cosmic-player-ready {
  top: max(.75rem, env(safe-area-inset-top));
  right: .75rem;
  bottom: auto;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  max-width: calc(100% - 1.5rem);
  min-height: 2.5rem;
  padding: .62rem .9rem;
  border: 2px solid #dce7ff;
  border-radius: 999px;
  background: #071d49;
  color: #fff;
  box-shadow: 0 8px 24px rgba(2, 12, 39, .42), 0 0 0 3px rgba(91, 136, 255, .16);
  font-size: clamp(.75rem, .72rem + .16vw, .875rem);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: .015em;
  text-align: left;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .75);
  white-space: normal;
  overflow-wrap: anywhere;
  opacity: 1;
  backdrop-filter: none;
}
.cosmic-player-ready strong {
  color: #fff;
  font: inherit;
}
.cosmic-player-ready i {
  width: .58rem;
  height: .58rem;
  flex: 0 0 .58rem;
  border: 2px solid #fff4c8;
  border-radius: 50%;
  background: #ffd35c;
  box-shadow: 0 0 0 3px rgba(255, 211, 92, .2), 0 0 14px rgba(255, 211, 92, .82);
}
@media (max-width: 700px) {
  .cosmic-player-ready {
    top: .65rem;
    right: .65rem;
    bottom: auto;
    max-width: calc(100% - 1.3rem);
    min-height: 2.4rem;
    padding: .55rem .75rem;
    font-size: .75rem;
  }
}
.future-cursor { position: absolute; z-index: 40; opacity: 0; pointer-events: none; }
body > .future-cursor.is-viewport-mounted {
  position: fixed;
  z-index: 850;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  gap: .4rem;
  opacity: 0;
  transform: translate3d(var(--cursor-x), var(--cursor-y), 0);
  transition: transform .45s ease, opacity .18s ease;
}
body > .future-cursor.is-viewport-mounted.is-visible { opacity: 1; }
body > .future-cursor.is-viewport-mounted > span {
  width: 25px;
  height: 31px;
  background: var(--color-brand-primary);
  clip-path: polygon(0 0, 0 78%, 24% 61%, 39% 100%, 53% 94%, 38% 57%, 68% 57%);
}
body > .future-cursor.is-viewport-mounted > b {
  max-width: 210px;
  padding: .45rem .65rem;
  border: 1px solid var(--color-border-strong);
  border-radius: .65rem;
  background: #fff;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-card);
  font-size: .78rem;
}

/* Home trust and plain-language FAQ */
.homepage-trust-section { padding-block: clamp(3rem, 6vw, 6rem); }
.homepage-trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.homepage-trust-grid article {
  min-width: 0;
  padding: clamp(1.15rem, 2vw, 1.65rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}
.homepage-trust-grid article > span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  margin-bottom: .65rem;
  color: var(--color-brand-secondary);
  font-size: .84rem;
  font-weight: 850;
}
.homepage-trust-grid h3 { margin: 0 0 .55rem; color: var(--color-text-primary); font-size: 1.08rem; }
.homepage-trust-grid p { margin: 0; color: var(--color-text-secondary); line-height: 1.8; }
.homepage-faq { display: grid; gap: .65rem; margin-top: 1.2rem; }
.homepage-faq details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface);
  box-shadow: var(--shadow-subtle);
}
.homepage-faq summary {
  min-height: 3.5rem;
  padding: .9rem 1rem;
  color: var(--color-text-primary);
  font-weight: 800;
  cursor: pointer;
}
.homepage-faq details p { margin: 0; padding: 0 1rem 1rem; color: var(--color-text-secondary); }

/* One learning flow */
.dekiru-shell { color: var(--color-text-primary); }
.dekiru-flow-head {
  align-items: center;
  padding: 1rem 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
}
.dekiru-flow-head p { color: var(--color-text-secondary); }
.dekiru-progress li::before { background: var(--route-line); }
.dekiru-progress li > span { border-color: var(--route-line); color: var(--color-text-secondary); }
.dekiru-progress li.is-done > span { border-color: var(--route-complete); background: var(--route-complete); }
.dekiru-progress li.is-done::before, .dekiru-progress li.is-current::before { background: var(--route-complete); }
.dekiru-progress li.is-current > span {
  border-color: var(--route-current);
  color: var(--route-current);
  box-shadow: 0 0 0 6px rgba(46, 141, 183, .13);
}
.dekiru-focus-card { position: relative; overflow: hidden; }
.dekiru-focus-card::before, .dekiru-outcome-card::before {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(var(--color-brand-secondary), #83c9d9);
  content: "";
}
.dekiru-step-label { color: var(--color-brand-secondary); }
.dekiru-primary { width: min(100%, 620px); min-height: 58px; }
.dekiru-choice > span {
  min-height: 62px;
  border-color: var(--color-border-strong);
  border-radius: var(--radius-control);
  color: var(--color-text-primary);
}
.dekiru-choice input:checked + span {
  border-color: var(--color-brand-secondary);
  background: var(--color-info-soft);
  box-shadow: 0 0 0 3px rgba(46, 141, 183, .12);
}
.dekiru-choice input:checked + span b { border-color: var(--color-brand-secondary); background: var(--color-brand-secondary); }
.dekiru-choice input:focus-visible + span { outline-color: var(--focus-ring); }
.dekiru-reroute-note {
  border-color: #d9c28d;
  background: linear-gradient(90deg, #fff9e9, #fff);
  color: var(--color-text-primary);
}
.dekiru-outcome-card {
  position: relative;
  background:
    radial-gradient(circle at 88% 12%, rgba(114, 191, 208, .17), transparent 16rem),
    linear-gradient(145deg, #fff 0, #f5fbf9 100%);
}
.dekiru-outcome-card::before { background: linear-gradient(var(--color-success), #71cdb2); }
.mastery-number strong { color: var(--color-success); }
.outcome-evidence { border-color: #b8dfd1; background: var(--color-success-soft); }

/* Handwriting studio */
.handwriting-workspace { gap: .75rem; }
.handwriting-tools {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  padding: .75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-surface-soft);
}
.handwriting-tools .button { min-height: 44px; padding: .55rem .8rem; }
.handwriting-tools [aria-pressed="true"] {
  border-color: var(--color-brand-secondary);
  background: var(--color-info-soft);
  color: var(--color-brand-primary);
  box-shadow: 0 0 0 3px rgba(46, 141, 183, .13);
}
.handwriting-tools label { display: flex; align-items: center; gap: .4rem; margin: 0; }
.handwriting-tools select { width: auto; min-height: 44px; margin: 0; padding-block: .35rem; }
.canvas-wrap {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-card);
  background-color: #fff;
  background-image: linear-gradient(#dce9f0 1px, transparent 1px), linear-gradient(90deg, #dce9f0 1px, transparent 1px);
  background-size: 28px 28px;
}
.canvas-wrap[data-paper="lined"] { background-image: linear-gradient(#dce9f0 1px, transparent 1px); background-size: 100% 34px; }
.canvas-wrap[data-paper="blank"] { background-image: none; }
.canvas-wrap canvas { display: block; width: 100%; touch-action: none; cursor: crosshair; }
.handwriting-keyboard-note {
  padding: .75rem 1rem;
  border-left: 4px solid var(--color-brand-secondary);
  background: var(--color-info-soft);
  color: var(--color-text-secondary);
}

/* Learning records, guardian and family */
.karte-hero, .family-hero, .dashboard-hero, .mypage-hero {
  border: 1px solid var(--color-border);
  background: linear-gradient(135deg, #fff, #f0f9fb 62%, #fff7ee);
  box-shadow: var(--shadow-card);
}
.family-outcome-summary { border-color: #b9ddd2; background: #f6fcfa; }
.family-outcome-grid article { border-color: var(--color-border); background: #fff; }
.guardian-progress-dashboard { border-color: var(--color-border); background: #f8fbfc; }
.guardian-progress-message { border-color: #b9ddd2; background: var(--color-success-soft); }
.guardian-progress-message > span { font-size: 1.25rem; }
.guardian-mini-stats > div > span { color: var(--color-brand-secondary); font-size: 1rem; }
.guardian-skill-insights > div { border: 1px solid var(--color-border); background: #fff; }
.family-security-note { color: var(--color-text-secondary); }

/* Authentication and account */
.auth-wrap { align-items: stretch; }
.auth-card, .auth-side { border-color: var(--color-border); background: #fff; }
.auth-card { max-width: 620px; }
.auth-side { background: linear-gradient(145deg, #edf8fb, #fff8ef); }
.auth-divider { color: var(--color-text-secondary); }
.google-login-button, .google-button { min-height: 52px; border-color: var(--color-border-strong); background: #fff; }
.danger-zone { border-color: #dfa6a0; background: #fffafa; }

/* Admin: dense but readable */
.admin-app { background: #f4f7fa; }
.admin-topbar { border-bottom: 1px solid var(--color-border); background: #fff; }
.admin-shell { align-items: start; gap: 1.25rem; }
.admin-nav-contents { display: contents; }
.admin-sidebar {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: 0 5px 18px rgba(16, 52, 87, .07);
}
.admin-sidebar a { min-height: 44px; color: var(--color-text-primary); }
.admin-app .admin-sidebar a,
.admin-app .admin-sidebar a:visited {
  border: 1px solid transparent;
  background: transparent;
  color: #17324d;
  text-decoration: none;
  text-shadow: none;
}
.admin-app .admin-sidebar a .admin-nav-label,
.admin-app .admin-sidebar a svg {
  color: currentColor;
  opacity: 1;
}
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):hover,
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):focus-visible {
  border-color: #b8d4e5;
  background: #e9f4fa;
  color: #0d3a5a;
  box-shadow: inset 3px 0 0 #2d91ba;
}
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):hover .admin-nav-label,
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):focus-visible .admin-nav-label,
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):hover svg,
.admin-app .admin-sidebar a:not(.active):not([aria-current="page"]):focus-visible svg {
  color: #0d3a5a;
  -webkit-text-fill-color: #0d3a5a;
}
.admin-app .admin-sidebar a:focus-visible {
  outline: 3px solid #f09a45;
  outline-offset: 2px;
}
.admin-sidebar a.active, .admin-sidebar a[aria-current="page"] {
  border-color: #b5d6e4;
  background: var(--color-info-soft);
  color: var(--color-brand-primary);
}
.admin-app .admin-sidebar a.active,
.admin-app .admin-sidebar a.active:hover,
.admin-app .admin-sidebar a[aria-current="page"],
.admin-app .admin-sidebar a[aria-current="page"]:hover {
  border-color: #9fc7dc;
  background: #dceef7;
  color: #0b3a5b;
  box-shadow: inset 3px 0 0 #2489b3;
}
.admin-app .admin-sidebar a.active .admin-nav-label,
.admin-app .admin-sidebar a.active svg,
.admin-app .admin-sidebar a[aria-current="page"] .admin-nav-label,
.admin-app .admin-sidebar a[aria-current="page"] svg {
  color: #0b3a5b;
  -webkit-text-fill-color: #0b3a5b;
}
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):hover,
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):focus-visible {
  border-color: #e8aaa4;
  background: #fff0ee;
  color: #7f211b;
  box-shadow: inset 3px 0 0 #bd352b;
}
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):hover .admin-nav-label,
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):focus-visible .admin-nav-label,
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):hover svg,
.admin-app .admin-sidebar a.has-notice:not(.active):not([aria-current="page"]):focus-visible svg {
  color: #7f211b;
  -webkit-text-fill-color: #7f211b;
}
.admin-page-head {
  padding: 1rem 0 1.25rem;
  border-bottom: 1px solid var(--color-border);
}
.kpi-row { gap: .75rem; }
.kpi-card { border-top: 4px solid var(--color-brand-secondary); }
.admin-contact-notice.is-warning { border-color: #e5c178; background: var(--color-warning-soft); }
.table-scroll, .table-wrap {
  max-width: 100%;
  border-color: var(--color-border);
  background: #fff;
  overscroll-behavior-inline: contain;
}
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th { color: var(--color-text-primary); background: #edf4f7; }
th, td { padding: .75rem; border-bottom: 1px solid #dfe8ee; text-align: left; vertical-align: top; }
tbody tr:hover { background: #f8fbfc; }

/* Calm processing states; progress is deliberately indeterminate. */
.ai-wait-overlay, .page-transition-overlay { z-index: var(--z-modal); }
.ai-wait-backdrop, .page-transition-overlay {
  background: rgba(238, 246, 249, .96);
}
.ai-wait-card, .page-loader-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-hero);
  background: #fff;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-float);
}
.ai-wait-head strong, .ai-wait-stepbox h2, .page-loader-copy h2 { color: var(--color-text-primary); }
.ai-wait-head p, .ai-wait-stepbox p, .ai-wait-live-row, .ai-wait-safe-note,
.page-loader-copy p, .page-loader-live { color: var(--color-text-secondary); }
.ai-wait-stepbox, .ai-wait-message, .ai-mini-video, .page-loader-phrase {
  border-color: var(--color-border);
  background: var(--color-surface-soft);
  color: var(--color-text-primary);
}
.ai-wait-orbits, .page-loader-sky { opacity: .35; }
.ai-wait-progress, .page-loader-progress { overflow: hidden; background: #dfeaf0; }
.ai-wait-progress.is-indeterminate span, .page-loader-progress.is-indeterminate span {
  width: 38%;
  animation: manabiIndeterminate 1.7s ease-in-out infinite;
}
@keyframes manabiIndeterminate {
  0% { transform: translateX(-120%); }
  60%, 100% { transform: translateX(300%); }
}

/* Dialogs and fixed helpers */
dialog {
  max-width: min(760px, calc(100% - 2rem));
  max-height: calc(100dvh - 2rem);
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-hero);
  background: #fff;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-float);
}
dialog::backdrop { background: rgba(14, 37, 61, .42); }
.guide-panel { max-height: calc(100dvh - 2rem); overflow: auto; }
.guide-fab { min-height: 48px; }
.pwa-nudge { z-index: 650; }

/* Responsive */
@media (min-width: 1181px) {
  .koto-cosmic-hero h1 { font-size: clamp(3rem, 5vw, 4.6rem); }
}

@media (max-width: 1480px) {
  .site-nav-area,
  .page-index .site-nav-area {
    z-index: var(--z-drawer);
    top: var(--site-header-bottom, calc(var(--header-height) + env(safe-area-inset-top)));
    width: min(420px, calc(100% - 1.25rem));
    max-height: calc(100dvh - var(--site-header-bottom, var(--header-height)));
    padding: 1rem max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) 1rem;
    border: 1px solid var(--color-border);
    border-right: 0;
    border-radius: 1.25rem 0 0 1.25rem;
    background: #fff;
    color: #142f4b;
    box-shadow: var(--shadow-float);
  }
  .site-nav-area .site-nav, .site-nav-area .nav-actions { width: 100%; }
  .nav-drawer-close {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .25rem;
    padding: .7rem .8rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-control);
    background: var(--color-surface-soft);
    color: var(--color-text-primary);
    font-weight: 800;
  }
  .nav-drawer-close b { font-size: 1.45rem; line-height: 1; }
  .site-nav-area .site-nav a,
  .site-nav-area .site-nav a:visited,
  .site-nav-area .nav-link,
  .page-index .site-nav-area .site-nav a,
  .page-index .site-nav-area .site-nav a:visited,
  .page-index .site-nav-area .nav-link {
    width: 100%;
    color: #142f4b;
    background: transparent;
    text-shadow: none;
  }
  .site-nav-area .site-nav a:hover,
  .site-nav-area .site-nav a:focus-visible,
  .site-nav-area .nav-link:hover,
  .site-nav-area .nav-link:focus-visible,
  .page-index .site-nav-area .site-nav a:hover,
  .page-index .site-nav-area .site-nav a:focus-visible,
  .page-index .site-nav-area .nav-link:hover,
  .page-index .site-nav-area .nav-link:focus-visible {
    color: #103457;
    background: #edf5ff;
  }
  .page-index .site-nav-area .guest-pill {
    border-color: #b9cad9;
    background: #f7fbff;
    color: #294963;
  }
  .page-index .site-nav-area .guest-pill strong { color: #103457; }
  .site-nav-area .button { width: 100%; }
  .nav-scrim { z-index: var(--z-scrim); }
  .nav-toggle { z-index: calc(var(--z-drawer) + 1); }
}

@media (max-width: 1024px) {
  .grid-4, .admin-cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-grid { grid-template-columns: 1fr; }
  .aside-col { position: static; }
  .cosmic-demo-player { grid-template-columns: 1fr; }
  .cosmic-player-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-shell { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .container, .admin-container { width: min(100% - 1.25rem, var(--content-wide)); }
  .grid-2, .grid-3, .admin-cols-2 { grid-template-columns: 1fr; }
  .site-header-inner { width: calc(100% - 1rem); }
  .brand-text small { display: none; }
  .koto-cosmic-hero { padding-inline: .75rem; }
  .koto-cosmic-hero .koto-appbar { display: none; }
  .homepage-trust-grid { grid-template-columns: 1fr; }
  .koto-guided-keywords { grid-template-columns: 1fr; }
  .cosmic-journey { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cosmic-journey > i { display: none; }
  .page-index .cosmic-journey > div {
    min-width: 0;
    padding: .85rem;
    border: 1px solid #a8c5d5;
    border-radius: 1rem;
    background: #f4f9fc;
    color: #103457;
    box-shadow: 0 8px 20px rgba(16, 52, 87, .08);
  }
  .page-index .cosmic-journey > div:last-child {
    border-color: #b9a9e9;
    background: #f7f3ff;
  }
  .cosmic-preview-cards { grid-template-columns: 1fr; }
  .dekiru-flow-head { display: grid; }
  .dekiru-flow-head .button { justify-self: start; }
  .admin-sidebar { max-width: 100%; overflow-x: auto; }
  .admin-sidebar nav { min-width: max-content; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .container { padding-bottom: calc(6.5rem + env(safe-area-inset-bottom)); }
  .brand-mark { width: 40px; height: 40px; flex-basis: 40px; }
  .brand-text strong { max-width: 10rem; font-size: .95rem; }
  .koto-cosmic-hero { padding-block: 2.5rem 4rem; }
  .koto-cosmic-hero h1 { font-size: clamp(2rem, 8.8vw, 2.75rem); letter-spacing: -.04em; }
  .koto-cosmic-hero .koto-hero-copy > p br { display: none; }
  .koto-cosmic-hero .koto-trust-row { display: grid; justify-content: stretch; }
  .koto-cosmic-hero .koto-trust-row span { justify-content: center; }
  .koto-cosmic-hero .koto-device { padding: .35rem; border-radius: 1.3rem; }
  .koto-cosmic-hero .koto-device-content { padding: .75rem; }
  .koto-cosmic-hero .koto-search-form { padding: .85rem; }
  .koto-cosmic-hero .koto-search-bottom { grid-template-columns: 1fr; }
  .first-visit-guide { align-items: flex-start; flex-direction: column; }
  .first-visit-guide > button { align-self: stretch; }
  .cosmic-showcase-title { align-items: flex-start; flex-direction: column; }
  .cosmic-player-side { grid-template-columns: 1fr; }
  body > .future-cursor.is-viewport-mounted { display: block; }
  .dekiru-progress small { font-size: .65rem; }
  .dekiru-choice > span { padding: .85rem; }
  .dekiru-outcome-actions, .practice-complete-actions { display: grid; }
  .dekiru-outcome-actions .button, .practice-complete-actions .button { width: 100%; }
  .handwriting-tools { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .handwriting-tools label { grid-column: 1 / -1; }
  .handwriting-tools .button { width: 100%; }
  .grid-4, .admin-cols-3, .kpi-row { grid-template-columns: 1fr; }
  .table-scroll { border: 0; background: transparent; }
  .table-scroll table { min-width: 680px; border: 1px solid var(--color-border); }
  .mobile-tabbar { padding-bottom: env(safe-area-inset-bottom); }
  .pwa-nudge { bottom: calc(92px + env(safe-area-inset-bottom)); }
  .page-index .koto-cosmic-hero .koto-route-line-one { display: none; }
  .page-index .koto-cosmic-hero .koto-cosmic-sky { opacity: .42; }
  .page-index .koto-cosmic-hero .koto-aurora span { opacity: .12; filter: blur(34px); }
  .page-index .koto-route-convergence {
    top: -1rem;
    width: calc(100% + 2rem);
    height: 9rem;
    opacity: .38;
  }
}

/* Homepage tablet composition and first-visit guide compatibility.
   Older theme rules assigned the device and showcase to named grid areas.
   The current light design nests both inside .koto-hero-stage, so every nested
   item must return to the normal flow before tablet breakpoints are applied. */
.page-index .koto-cosmic-hero .koto-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: none;
  align-items: start;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  width: min(1180px, calc(100% - 1rem));
}
.page-index .koto-cosmic-hero .koto-hero-copy,
.page-index .koto-cosmic-hero .koto-hero-stage,
.page-index .koto-cosmic-hero .koto-device,
.page-index .koto-cosmic-hero .cosmic-live-showcase {
  grid-area: auto;
  grid-column: auto;
  grid-row: auto;
  min-width: 0;
  max-width: 100%;
}
.page-index .koto-cosmic-hero .koto-hero-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0;
}
.page-index .koto-cosmic-hero .koto-hero-stage {
  position: relative;
  display: grid;
  width: min(940px, 100%);
  margin: 0 auto;
  padding: 0;
  gap: 1.5rem;
}
.page-index .koto-cosmic-hero .koto-device,
.page-index .koto-cosmic-hero .cosmic-live-showcase {
  position: relative;
  inset: auto;
  width: 100%;
  margin: 0;
}
.page-index .koto-cosmic-hero .koto-kicker {
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  flex-flow: row wrap;
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  white-space: normal;
}
.page-index .koto-cosmic-hero .koto-hero-line {
  display: block;
  max-width: 100%;
  text-wrap: balance;
  overflow-wrap: anywhere;
  word-break: keep-all;
}
.page-index .koto-cosmic-hero h1 {
  max-width: 920px;
  font-size: clamp(2.55rem, 6.25vw, 4.2rem);
  line-height: 1.16;
}
.page-index .koto-cosmic-hero .koto-device-content,
.page-index .koto-cosmic-hero .koto-search-form,
.page-index .koto-cosmic-hero .first-visit-guide,
.page-index .koto-cosmic-hero .koto-guided-keywords {
  min-width: 0;
  max-width: 100%;
}

@media (min-width: 1240px) {
  .page-index .koto-cosmic-hero .koto-hero-inner {
    grid-template-columns: minmax(0, 1fr);
    width: min(1600px, calc(100% - 2rem));
    gap: clamp(2rem, 4vw, 3.75rem);
  }
  .page-index .koto-cosmic-hero .koto-hero-copy {
    padding-top: .5rem;
    text-align: center;
  }
  .page-index .koto-cosmic-hero .koto-kicker,
  .page-index .koto-cosmic-hero .koto-hero-copy > p {
    margin-inline: auto;
  }
  .page-index .koto-cosmic-hero h1 {
    max-width: 1480px;
    font-size: clamp(4rem, 6.1vw, 6.75rem);
    line-height: 1.12;
  }
  .page-index .koto-cosmic-hero .koto-hero-stage {
    width: min(1180px, 100%);
  }
}

@media (max-width: 820px) {
  .page-index .koto-cosmic-hero .koto-hero-inner { width: min(100%, 46rem); }
  .page-index .koto-cosmic-hero h1 { font-size: clamp(2.35rem, 7.2vw, 3.45rem); }
}

@media (max-width: 600px) {
  .page-index .koto-cosmic-hero .koto-hero-inner { width: 100%; gap: 1.35rem; }
  .page-index .koto-cosmic-hero .koto-kicker {
    justify-content: center;
    font-size: .72rem;
    text-align: center;
  }
  .page-index .koto-cosmic-hero h1 {
    font-size: clamp(2rem, 9vw, 2.65rem);
    line-height: 1.18;
  }
  body > .future-cursor.is-viewport-mounted {
    display: block;
    z-index: 850;
  }
}

/* The viewport origin is the pointer tip.  Bubble direction classes now work
   on every width, including iPhone portrait where the former flex layout
   always placed the label off the right edge. */
body > .future-cursor.is-viewport-mounted {
  width: 1px;
  height: 1px;
  align-items: initial;
  gap: 0;
  scale: 1;
  transform-origin: left top;
}
body > .future-cursor.is-viewport-mounted > span {
  position: absolute;
  left: -2px;
  top: -2px;
  display: block;
}
body > .future-cursor.is-viewport-mounted > b {
  position: absolute;
  left: 29px;
  top: 12px;
  width: max-content;
  max-width: min(210px, calc(var(--guide-viewport-width, 390px) - 2rem));
  white-space: normal;
  line-height: 1.45;
}
body > .future-cursor.is-viewport-mounted.is-label-left > b {
  right: 18px;
  left: auto;
}
body > .future-cursor.is-viewport-mounted.is-label-above > b {
  top: auto;
  bottom: 18px;
}
body > .future-cursor.is-viewport-mounted.is-compact-guide > b {
  max-width: min(180px, calc(var(--guide-viewport-width, 390px) - 2rem));
  padding: .5rem .65rem;
  border-color: #8fb6ca;
  background: #fff;
  color: #103457;
  font-size: .75rem;
  font-weight: 850;
  box-shadow: 0 10px 28px rgba(16, 52, 87, .2);
}

@media (max-width: 390px) {
  .container, .admin-container { width: calc(100% - 1rem); }
  .brand-text strong { max-width: 8.5rem; font-size: .88rem; }
  .koto-cosmic-hero h1 { font-size: clamp(1.85rem, 8.8vw, 2.3rem); }
  .koto-cosmic-hero .koto-search-submit { padding-inline: .75rem; font-size: .94rem; }
  .dekiru-progress { overflow-x: auto; grid-template-columns: repeat(5, minmax(62px, 1fr)); padding: .25rem; }
}

@media (orientation: landscape) and (max-height: 560px) {
  .site-nav-area { max-height: calc(100dvh - var(--site-header-bottom, var(--header-height))); }
  dialog, .guide-panel, .ai-wait-card, .page-loader-card { max-height: calc(100dvh - 1rem); overflow: auto; }
}

@media (prefers-contrast: more) {
  :root { --color-border: #7891a5; --color-text-secondary: #334e65; }
  .button, input, textarea, select, .panel, .card { border-width: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto;
    animation-duration: .01ms;
    animation-iteration-count: 1;
    transition-duration: .01ms;
  }
  .ai-wait-progress.is-indeterminate span, .page-loader-progress.is-indeterminate span { width: 100%; transform: none; }
  .page-index .koto-hero-copy .koto-kicker,
  .page-index .koto-hero-copy .koto-hero-line,
  .page-index .koto-hero-copy .koto-solution-band,
  .page-index .koto-hero-copy > p,
  .page-index .koto-hero-copy .koto-hero-actions,
  .page-index .koto-hero-copy .koto-trust-row,
  .page-index .koto-hero-stage .koto-device {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }
  .page-index .koto-route-convergence path { stroke-dashoffset: 0; }
  .page-index .koto-cosmic-hero .koto-hero-line:last-child::after { opacity: .92 !important; transform: scaleX(1) !important; animation: none !important; }
  .page-index .koto-cosmic-hero h1 em { animation: none !important; }
  .page-index .koto-cosmic-hero .koto-cosmic-sky i,
  .page-index .koto-cosmic-hero .koto-aurora span,
  .page-index .koto-cosmic-hero .koto-route-line-one::before,
  .page-index .koto-cosmic-hero .koto-route-line-one i,
  .page-index .koto-cosmic-hero .koto-stage-orb { animation: none !important; }
  .page-index .koto-cosmic-hero .koto-device::after,
  .page-index .koto-cosmic-hero .koto-hero-actions .primary::after,
  .page-index .koto-cosmic-hero .koto-solution-band::before,
  .page-index .koto-cosmic-hero .koto-kicker::after { display: none; }
}

@media print {
  .site-header, .site-footer, .mobile-tabbar, .guide-fab, .pwa-nudge, .nav-scrim { display: none; }
  body { background: #fff; color: #000; }
  .container { width: 100%; padding: 0; }
  .panel, .card, .admin-card { box-shadow: none; break-inside: avoid; }
}

/* V114 — value on the left, working experience on the right.
   Desktop visitors should understand the difference and be able to try it in
   the same view. Tablets and phones intentionally remain a safe single flow. */
.page-index .koto-cosmic-hero {
  min-height: calc(100dvh - var(--header-height, 76px));
  padding: clamp(3.4rem, 5.2vw, 6.4rem) clamp(1.5rem, 3vw, 3.2rem) 6rem;
  background:
    linear-gradient(90deg, rgba(3, 15, 49, .82) 0%, rgba(5, 22, 61, .68) 36%, rgba(8, 25, 63, .22) 68%, rgba(10, 16, 48, .08) 100%),
    linear-gradient(180deg, rgba(1, 7, 28, .15) 0%, rgba(2, 8, 28, .12) 56%, rgba(2, 8, 25, .42) 100%),
    url('hero-starry-dawn.webp') center / cover no-repeat;
  background-color: #07163c;
}
.page-index .koto-cosmic-hero::before {
  opacity: .72;
  background:
    radial-gradient(circle at 10% 30%, rgba(77, 177, 213, .16), transparent 22rem),
    linear-gradient(115deg, transparent 24%, rgba(255, 196, 145, .07) 50%, transparent 74%);
  animation: kotoV114Backdrop 14s ease-in-out infinite alternate;
}
.page-index .koto-cosmic-hero .koto-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "copy" "stage";
  align-items: start;
  gap: clamp(2rem, 5vw, 4rem);
  width: min(1120px, 100%);
  margin: 0 auto;
}
.page-index .koto-cosmic-hero .koto-hero-copy {
  grid-area: copy;
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 0;
  color: #fff;
  text-align: left;
}
.page-index .koto-cosmic-hero .koto-kicker {
  justify-content: flex-start;
  margin: 0 0 1.4rem;
  padding: .68rem 1rem;
  border-color: rgba(179, 220, 240, .68);
  background: rgba(6, 31, 73, .56);
  color: #fff;
  box-shadow: 0 12px 32px rgba(0, 4, 25, .2), inset 0 1px rgba(255,255,255,.08);
}
.page-index .koto-cosmic-hero .koto-kicker b { color: #fff; }
.page-index .koto-cosmic-hero .koto-kicker i { background: #7ed5ec; }
.page-index .koto-cosmic-hero h1 {
  width: 100%;
  max-width: none;
  margin: 0;
  color: #fff;
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  line-height: 1.12;
  letter-spacing: -.055em;
  text-align: left;
}
.page-index .koto-cosmic-hero .koto-hero-problem {
  display: block;
  max-width: 12.5em;
  color: #fff;
  text-shadow: 0 3px 18px rgba(0, 5, 28, .72), 0 1px 2px rgba(0,0,0,.42);
}
.page-index .koto-cosmic-hero .koto-hero-problem::after {
  content: "";
  display: block;
  width: min(100%, 8.85em);
  height: 5px;
  margin-top: .08em;
  border-radius: 999px;
  background: linear-gradient(90deg, #65bdd3 0%, #8cc8d4 56%, #ff9b55 100%);
  transform: scaleX(0);
  transform-origin: left;
}
.page-index .koto-hero-copy.is-visible .koto-hero-problem::after {
  animation: kotoV114Underline .72s cubic-bezier(.2,.82,.2,1) .52s both;
}
.page-index .koto-cosmic-hero .koto-hero-bridge {
  display: grid;
  grid-template-columns: minmax(2.4rem, .6fr) auto minmax(2.4rem, .6fr);
  align-items: center;
  gap: .75rem;
  max-width: 34rem;
  margin: 1rem 0 1.05rem;
  color: #ffd4b5;
  font-family: var(--font-sans);
  font-size: clamp(.78rem, 1.2vw, .95rem);
  font-weight: 900;
  letter-spacing: .03em;
  opacity: 0;
}
.page-index .koto-cosmic-hero .koto-hero-bridge::before,
.page-index .koto-cosmic-hero .koto-hero-bridge::after {
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(126, 213, 236, .18), rgba(173, 225, 239, .78));
  content: "";
}
.page-index .koto-cosmic-hero .koto-hero-bridge::after {
  background: linear-gradient(90deg, rgba(173, 225, 239, .78) 0 68%, #ff9b55 68% 72%, rgba(173, 225, 239, .35) 72%);
}
.page-index .koto-cosmic-hero .koto-hero-bridge > span {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  padding: .38rem .85rem;
  border: 1px solid rgba(255, 190, 141, .76);
  border-radius: 999px;
  background: rgba(23, 22, 63, .62);
  color: #ffd4b5;
  -webkit-text-fill-color: #ffd4b5;
  box-shadow: 0 8px 24px rgba(0, 5, 25, .2);
  white-space: nowrap;
}
.page-index .koto-hero-copy.is-visible .koto-hero-bridge {
  animation: kotoV114Reveal .6s ease .76s both;
}
.page-index .koto-cosmic-hero .koto-solution-band {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: none;
  color: #fff;
  box-shadow: none;
  opacity: 0;
  transform: translate3d(0, 16px, 0);
}
.page-index .koto-cosmic-hero .koto-solution-band::before,
.page-index .koto-cosmic-hero .koto-solution-band::after,
.page-index .koto-solution-band .koto-route-convergence { display: none; }
.page-index .koto-cosmic-hero .koto-hero-solution {
  display: block;
  color: #fff;
  text-shadow: none;
}
.page-index .koto-cosmic-hero h1 .koto-hero-solution em {
  display: block;
  background: none;
  color: #fff;
  -webkit-text-fill-color: #fff;
  font-style: normal;
  animation: none;
}
.page-index .koto-cosmic-hero h1 .koto-hero-solution strong {
  display: table;
  width: fit-content;
  max-width: 100%;
  margin-top: .18em;
  padding: .16em .32em .2em;
  border: 1px solid rgba(126, 213, 236, .72);
  border-radius: .34em;
  background: linear-gradient(112deg, rgba(9, 69, 104, .96) 0%, rgba(15, 123, 144, .96) 100%);
  color: #ffb27d;
  -webkit-text-fill-color: #ffb27d;
  font: inherit;
  font-weight: 950;
  letter-spacing: -.05em;
  box-shadow: 0 18px 42px rgba(17, 88, 113, .17), inset 0 1px rgba(255,255,255,.13);
}
.page-index .koto-hero-copy.is-visible .koto-solution-band {
  animation: kotoV114Reveal .72s cubic-bezier(.18,.82,.22,1) .96s both;
}
.page-index .koto-hero-copy.is-visible .koto-hero-solution { animation: none; }
.page-index .koto-cosmic-hero .koto-hero-copy > p {
  max-width: 38rem;
  margin: 1.45rem 0 0;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(183, 219, 236, .58);
  border-left: 4px solid #f47c22;
  border-radius: 1rem;
  background: rgba(4, 24, 63, .62);
  color: #e8f4fb;
  font-size: clamp(.95rem, 1.45vw, 1.12rem);
  font-weight: 750;
  line-height: 1.8;
  text-align: left;
  box-shadow: 0 14px 38px rgba(0, 4, 25, .25), inset 0 1px rgba(255,255,255,.07);
}
.page-index .koto-cosmic-hero .koto-hero-copy > p::first-line {
  color: #fff;
  font-size: 1.08em;
  font-weight: 900;
}
.page-index .koto-cosmic-hero .koto-hero-actions {
  justify-content: flex-start;
  margin-top: 1.35rem;
}
.page-index .koto-cosmic-hero .koto-hero-actions .button {
  min-width: min(17rem, 100%);
  min-height: 3.55rem;
}
.page-index .koto-cosmic-hero .koto-trust-row {
  justify-content: flex-start;
  max-width: 38rem;
  margin-top: 1rem;
}
.page-index .koto-cosmic-hero .koto-trust-row span {
  border-color: rgba(190, 224, 239, .5);
  background: rgba(4, 25, 64, .55);
  color: #f4fbff;
  box-shadow: 0 9px 26px rgba(0, 5, 25, .18);
}
.page-index .koto-cosmic-hero .koto-hero-stage {
  grid-area: stage;
  display: grid;
  width: 100%;
  min-width: 0;
  max-width: none;
  margin: 0;
  gap: 1.5rem;
}
.page-index .koto-cosmic-hero .koto-device {
  width: 100%;
  margin: 0;
  padding: .55rem;
  border: 1px solid #b9d7e5;
  border-radius: 2rem;
  background: rgba(235, 247, 251, .9);
  box-shadow: 0 28px 70px rgba(20, 65, 90, .14), inset 0 1px rgba(255,255,255,.9);
}
.page-index .koto-cosmic-hero .koto-device-screen { border-radius: 1.55rem; }
.page-index .koto-cosmic-hero .koto-device-content { padding: clamp(1.25rem, 2.2vw, 2rem); }
.page-index .koto-cosmic-hero .koto-search-form {
  padding: clamp(1.15rem, 2vw, 1.7rem);
  border-color: #c5dbe6;
  border-radius: 1.5rem;
}
.page-index .koto-cosmic-hero .koto-input-shell textarea { min-height: 136px; }
.page-index .koto-cosmic-hero .cosmic-live-showcase { width: 100%; margin-top: .5rem; }

@keyframes kotoV114Backdrop { to { transform: translate3d(1.2%, 0, 0); } }
@keyframes kotoV114Underline { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes kotoV114Reveal {
  from { opacity: 0; transform: translate3d(0, 16px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@media (min-width: 1181px) {
  .page-index .koto-cosmic-hero .koto-hero-inner {
    grid-template-columns: minmax(28rem, .82fr) minmax(42rem, 1.18fr);
    grid-template-areas: "copy stage";
    gap: clamp(3rem, 5vw, 6.5rem);
    width: min(112rem, 100%);
  }
  .page-index .koto-cosmic-hero .koto-hero-copy {
    max-width: 43rem;
    margin: 0;
  }
  .page-index .koto-cosmic-hero h1 { font-size: clamp(2.9rem, 3.45vw, 4.25rem); }
  .page-index .koto-cosmic-hero .koto-hero-stage { align-self: start; }
}

@media (max-width: 1180px) {
  .page-index .koto-cosmic-hero { padding-top: 3rem; }
  .page-index .koto-cosmic-hero .koto-hero-copy {
    max-width: 48rem;
    text-align: left;
  }
  .page-index .koto-cosmic-hero .koto-hero-stage { width: min(52rem, 100%); margin-inline: auto; }
}

@media (max-width: 600px) {
  .page-index .koto-cosmic-hero {
    padding: 2rem .85rem 5rem;
    background:
      linear-gradient(180deg, rgba(2, 13, 45, .58) 0%, rgba(4, 16, 48, .42) 30rem, rgba(5, 14, 39, .82) 52rem, #07163c 100%),
      url('hero-starry-dawn.webp') 58% top / auto 52rem no-repeat;
    background-color: #07163c;
  }
  .page-index .koto-cosmic-hero .koto-hero-inner { gap: 1.75rem; }
  .page-index .koto-cosmic-hero .koto-kicker {
    justify-content: flex-start;
    margin-bottom: 1rem;
    padding: .55rem .72rem;
    font-size: .68rem;
  }
  .page-index .koto-cosmic-hero h1 { font-size: clamp(2rem, 9vw, 2.7rem); }
  .page-index .koto-cosmic-hero .koto-hero-bridge {
    grid-template-columns: minmax(1.4rem, .45fr) auto minmax(1.4rem, .45fr);
    gap: .45rem;
    margin-block: .78rem;
    font-size: .7rem;
  }
  .page-index .koto-cosmic-hero .koto-hero-bridge > span { min-height: 2rem; padding: .3rem .6rem; }
  .page-index .koto-cosmic-hero h1 .koto-hero-solution strong {
    padding: .18em .25em .22em;
    border-radius: .32em;
  }
  .page-index .koto-cosmic-hero .koto-hero-copy > p {
    margin-top: 1rem;
    padding: .85rem .9rem;
    font-size: .92rem;
  }
  .page-index .koto-cosmic-hero .koto-hero-copy > p br { display: none; }
  .page-index .koto-cosmic-hero .koto-hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
  .page-index .koto-cosmic-hero .koto-hero-actions .button { width: 100%; min-width: 0; }
  .page-index .koto-cosmic-hero .koto-hero-actions .koto-secondary-button { display: none; }
  .page-index .koto-cosmic-hero .koto-trust-row {
    display: flex;
    justify-content: flex-start;
    margin-top: .75rem;
  }
  .page-index .koto-cosmic-hero .koto-trust-row span { width: auto; padding: .55rem .8rem; }
  .page-index .koto-cosmic-hero .koto-trust-row span:nth-child(n + 2) { display: none; }
  .page-index .koto-cosmic-hero .koto-device { padding: .35rem; border-radius: 1.45rem; }
}

@media (prefers-reduced-motion: reduce) {
  .page-index .koto-cosmic-hero .koto-hero-bridge,
  .page-index .koto-cosmic-hero .koto-solution-band {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }
  .page-index .koto-cosmic-hero .koto-hero-problem::after {
    transform: scaleX(1) !important;
    animation: none !important;
  }
}

/* V116 — high-contrast story statement over the starry hero. */
.page-index .koto-cosmic-hero .cosmic-showcase-title {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  overflow: hidden;
  border: 1px solid rgba(148, 205, 229, .58);
  border-left: 4px solid #ff9b55;
  border-radius: 1rem;
  background: linear-gradient(112deg, rgba(3, 21, 56, .97), rgba(8, 49, 80, .94));
  box-shadow: 0 16px 38px rgba(0, 5, 28, .28), inset 0 1px rgba(255,255,255,.08);
}
.page-index .koto-cosmic-hero .cosmic-showcase-title > div {
  min-width: 0;
  align-items: center;
}
.page-index .koto-cosmic-hero .cosmic-showcase-title h2 {
  min-width: 0;
  margin: 0;
  color: #fff;
  font-family: var(--font-sans);
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  font-weight: 900;
  line-height: 1.45;
  letter-spacing: -.025em;
  overflow-wrap: anywhere;
  text-shadow: 0 3px 14px rgba(0, 4, 25, .72);
}
.page-index .koto-cosmic-hero .cosmic-showcase-title h2 .cosmic-showcase-lead {
  display: block;
  color: #fff;
  -webkit-text-fill-color: #fff;
}
.page-index .koto-cosmic-hero .cosmic-showcase-title h2 em {
  display: block;
  color: #ffb27d;
  font-style: normal;
  font-weight: 950;
  -webkit-text-fill-color: #ffb27d;
}
.page-index .koto-cosmic-hero .cosmic-showcase-title > div > span {
  flex: 0 0 auto;
  color: #ffd18f;
  font-size: 1.2rem;
  text-shadow: 0 0 16px rgba(255, 177, 106, .5);
}
.page-index .koto-cosmic-hero .cosmic-showcase-title > small {
  flex: 0 0 auto;
  min-height: 2.2rem;
  display: inline-flex;
  align-items: center;
  padding: .42rem .72rem;
  border: 1px solid rgba(174, 224, 242, .55);
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: .9rem;
  font-weight: 900;
  line-height: 1.45;
  text-shadow: 0 2px 10px rgba(0, 4, 25, .68);
}

@media (max-width: 700px) {
  .page-index .koto-cosmic-hero .cosmic-showcase-title {
    align-items: flex-start;
    flex-direction: column;
    gap: .55rem;
    padding: .9rem 1rem;
  }
  .page-index .koto-cosmic-hero .cosmic-showcase-title > div { align-items: flex-start; }
  .page-index .koto-cosmic-hero .cosmic-showcase-title h2 { font-size: 1.14rem; }
  .page-index .koto-cosmic-hero .cosmic-showcase-title > small {
    max-width: none;
    align-self: flex-start;
    padding: .4rem .68rem;
    text-align: left;
  }
}

/* V119 — one learning studio for children, adults, school, work and interests. */
.page-index .koto-cosmic-hero .koto-audience-scope {
  display: grid;
  max-width: 38rem;
  gap: .62rem;
  margin: 0 0 1.15rem;
  padding: .85rem 1rem;
  border: 1px solid rgba(171, 218, 236, .58);
  border-radius: 1rem;
  background: linear-gradient(110deg, rgba(3, 24, 64, .88), rgba(12, 57, 89, .75));
  color: #fff;
  box-shadow: 0 14px 38px rgba(0, 5, 28, .24), inset 0 1px rgba(255, 255, 255, .08);
}
.page-index .koto-cosmic-hero .koto-audience-scope > strong {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: #fff;
  font-size: clamp(.92rem, 1.35vw, 1.08rem);
  font-weight: 950;
  line-height: 1.45;
  text-shadow: 0 2px 12px rgba(0, 3, 22, .58);
}
.page-index .koto-cosmic-hero .koto-audience-scope > strong svg { color: #7edfd5; }
.page-index .koto-cosmic-hero .koto-audience-scope ul {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-index .koto-cosmic-hero .koto-audience-scope li {
  display: inline-flex;
  min-height: 1.85rem;
  align-items: center;
  padding: .3rem .62rem;
  border: 1px solid rgba(196, 225, 241, .42);
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  color: #f5fbff;
  font-size: .78rem;
  font-weight: 850;
  line-height: 1.2;
}
.page-index .koto-cosmic-hero .koto-hero-copy > p strong {
  color: #fff;
  font-weight: 950;
}
.page-index .koto-cosmic-hero .koto-guided-keywords {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.page-index .koto-cosmic-hero .koto-guided-keywords > button {
  min-width: 0;
}
.page-index .koto-cosmic-hero .koto-guided-keywords > button > b,
.page-index .koto-cosmic-hero .koto-guided-keywords > button > small {
  min-width: 0;
  overflow: visible;
  text-overflow: clip;
  white-space: normal;
  overflow-wrap: anywhere;
}

.page-index .koto-learning-range-section {
  display: grid;
  grid-template-columns: minmax(18rem, .72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: clamp(2rem, 4vw, 4.5rem);
  background:
    radial-gradient(circle at 7% 12%, rgba(103, 190, 210, .13), transparent 30%),
    radial-gradient(circle at 93% 82%, rgba(244, 124, 34, .1), transparent 27%),
    #fff;
}
.page-index .koto-learning-range-intro {
  position: sticky;
  top: calc(var(--header-height, 72px) + 1.5rem);
  min-width: 0;
}
.page-index .koto-learning-range-intro h2 {
  margin: .8rem 0 1rem;
  color: var(--color-text-primary);
  font-size: clamp(2rem, 3.2vw, 3.3rem);
  line-height: 1.3;
  letter-spacing: -.045em;
}
.page-index .koto-learning-range-intro h2 em {
  color: #0c7085;
  font-style: normal;
}
.page-index .koto-learning-range-intro > p {
  max-width: 38rem;
  color: #405a70;
  font-size: 1.04rem;
  font-weight: 650;
  line-height: 1.9;
}
.page-index .koto-learning-range-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.page-index .koto-learning-range-grid article {
  position: relative;
  min-width: 0;
  min-height: 17rem;
  padding: 1.45rem;
  overflow: hidden;
  border: 1px solid #c9dce6;
  border-radius: 1.35rem;
  background: rgba(250, 253, 255, .96);
  box-shadow: 0 15px 38px rgba(22, 69, 94, .09);
}
.page-index .koto-learning-range-grid article::after {
  position: absolute;
  right: -2.4rem;
  bottom: -2.8rem;
  width: 8rem;
  height: 8rem;
  border: 1.4rem solid rgba(80, 174, 197, .08);
  border-radius: 50%;
  content: "";
}
.page-index .koto-learning-range-grid article > span {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  margin-bottom: 1rem;
  border: 1px solid #a9cfdb;
  border-radius: .9rem;
  background: #eaf7f9;
  color: #0b7187;
}
.page-index .koto-learning-range-grid article:nth-child(even) > span {
  border-color: #f2c19c;
  background: #fff4eb;
  color: #c45a12;
}
.page-index .koto-learning-range-grid small {
  display: block;
  color: #587086;
  font-size: .78rem;
  font-weight: 800;
  line-height: 1.5;
}
.page-index .koto-learning-range-grid h3 {
  margin: .25rem 0 .55rem;
  color: var(--color-text-primary);
  font-size: 1.45rem;
  line-height: 1.35;
}
.page-index .koto-learning-range-grid p {
  margin: 0;
  color: #435c72;
  font-weight: 600;
  line-height: 1.75;
}
.page-index .koto-learning-range-grid ul {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.page-index .koto-learning-range-grid li {
  padding: .28rem .55rem;
  border: 1px solid #ccdee8;
  border-radius: 999px;
  background: #fff;
  color: #294b65;
  font-size: .76rem;
  font-weight: 800;
}

@media (max-width: 1180px) {
  .page-index .koto-cosmic-hero .koto-audience-scope { margin-inline: auto; }
  .page-index .koto-learning-range-section { grid-template-columns: 1fr; }
  .page-index .koto-learning-range-intro { position: static; }
}
@media (max-width: 900px) {
  .page-index .koto-cosmic-hero .koto-guided-keywords { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .page-index .koto-cosmic-hero .koto-audience-scope {
    margin: 0 0 .9rem;
    padding: .72rem .78rem;
  }
  .page-index .koto-cosmic-hero .koto-audience-scope > strong { align-items: flex-start; font-size: .86rem; }
  .page-index .koto-cosmic-hero .koto-audience-scope li { min-height: 1.7rem; padding: .25rem .5rem; font-size: .7rem; }
  .page-index .koto-cosmic-hero .koto-guided-keywords { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-index .koto-cosmic-hero .koto-guided-keywords > button { min-height: 5rem; padding: .68rem; }
  .page-index .koto-cosmic-hero .koto-guided-keywords > button > span { width: 1.75rem; height: 1.75rem; }
  .page-index .koto-cosmic-hero .koto-guided-keywords > button > b { font-size: .78rem; }
  .page-index .koto-cosmic-hero .koto-guided-keywords > button > small { font-size: .67rem; }
  .page-index .koto-learning-range-section { padding-inline: 1rem; }
  .page-index .koto-learning-range-intro h2 { font-size: clamp(1.8rem, 8.5vw, 2.45rem); }
  .page-index .koto-learning-range-grid { grid-template-columns: 1fr; }
  .page-index .koto-learning-range-grid article { min-height: 0; padding: 1.2rem; }
}
@media (max-width: 350px) {
  .page-index .koto-cosmic-hero .koto-guided-keywords { grid-template-columns: 1fr; }
}