/* ============================================================
   ことラボAI — Visual System V99
   添付デザインに合わせた、生成り・紺・オレンジ・水色のUI
   ============================================================ */

:root {
  --navy: #103457;
  --navy-soft: #35526d;
  --mist: #eef8fc;
  --ivory: #fbf7ef;
  --slate: #6f7c88;
  --teal: #86c8df;
  --teal-deep: #2787b4;
  --teal-soft: #e9f7fc;
  --gold: #f58a2f;
  --gold-deep: #e66f16;
  --gold-soft: #fff2e4;
  --blue: #2a86c0;
  --blue-deep: #176a9e;
  --blue-soft: #e9f5fb;
  --border: #e4e1da;
  --border-strong: #d3cec5;
  --bg: #fbf8f2;
  --card: #fffdf9;
  --koto-orange: #f47c22;
  --koto-orange-deep: #df6714;
  --koto-orange-soft: #fff0df;
  --koto-blue: #85c7e5;
  --koto-blue-deep: #2e8db7;
  --koto-blue-soft: #eaf7fc;
  --koto-navy: #103457;
  --koto-paper: #fbf8f2;
  --koto-paper-deep: #f4eee3;
  --koto-shadow: 0 16px 42px rgba(16, 52, 87, .10), 0 3px 10px rgba(16, 52, 87, .05);
  --koto-shadow-soft: 0 9px 26px rgba(16, 52, 87, .07), 0 2px 7px rgba(16, 52, 87, .04);
  --shadow-sm: var(--koto-shadow-soft);
  --shadow-md: var(--koto-shadow);
  --shadow-lg: 0 26px 70px rgba(16, 52, 87, .15);
  --shadow-cta: 0 12px 28px rgba(244, 124, 34, .28);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font: "Hiragino Sans", "Yu Gothic", "Yu Gothic UI", "Noto Sans JP", Meiryo, system-ui, sans-serif;
}

html { background: var(--koto-paper); }
body {
  color: var(--koto-navy);
  background-color: var(--koto-paper);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(244,124,34,.07), transparent 19rem),
    radial-gradient(circle at 92% 12%, rgba(133,199,229,.12), transparent 24rem),
    radial-gradient(circle at 18% 82%, rgba(133,199,229,.08), transparent 26rem),
    repeating-linear-gradient(0deg, rgba(16,52,87,.012) 0, rgba(16,52,87,.012) 1px, transparent 1px, transparent 4px);
  background-attachment: fixed;
}
body::selection { background: rgba(244,124,34,.20); }

h1, h2, h3, h4 { color: var(--koto-navy); letter-spacing: .015em; }
h1 { font-weight: 900; }
h2, h3 { font-weight: 850; }
a { color: var(--koto-blue-deep); }

/* ---------- Shared chrome ---------- */
.site-header {
  background: rgba(255,253,249,.92);
  border-bottom: 1px solid rgba(16,52,87,.09);
  box-shadow: 0 5px 24px rgba(16,52,87,.035);
}
.site-header-inner { min-height: 74px; width: min(1420px, calc(100% - 36px)); }
.brand { gap: 11px; }
.brand-mark {
  width: 43px;
  height: 43px;
  border-radius: 15px;
  color: var(--koto-navy);
  background: linear-gradient(145deg, #fff, #f8f1e8);
  border: 1px solid rgba(16,52,87,.10);
  box-shadow: 0 8px 20px rgba(16,52,87,.09);
}
.brand-mark svg { width: 28px; height: 28px; }
.brand-text strong { color: var(--koto-navy); font-size: 18px; letter-spacing: .035em; }
.brand-text strong .brand-ai, .brand-ai { color: var(--koto-orange); }
.brand-text small { color: #7c8790; font-size: 10.5px; }
.site-nav { gap: 2px; }
.site-nav a, .nav-guide-button {
  color: var(--koto-navy);
  font-weight: 750;
  border-radius: 999px;
  padding: 9px 13px;
}
.site-nav a:hover, .nav-guide-button:hover { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.nav-link { color: var(--koto-navy); }
.guest-pill { background: #fff; border-color: rgba(16,52,87,.11); }
.guest-pill .dot { background: var(--koto-orange); }
.nav-toggle { border-color: rgba(16,52,87,.12); background: #fffdf9; }

.button, button, .btn {
  border-color: rgba(16,52,87,.12);
  border-radius: 15px;
  color: var(--koto-navy);
  background: rgba(255,255,255,.92);
  box-shadow: 0 7px 18px rgba(16,52,87,.07);
  font-weight: 800;
}
.button:hover, button:hover { border-color: rgba(16,52,87,.22); box-shadow: 0 12px 28px rgba(16,52,87,.11); }
.primary, .primary-inline, .nav-cta, button.primary {
  color: #fff;
  background: linear-gradient(135deg, #ff913b 0%, var(--koto-orange) 58%, var(--koto-orange-deep) 100%);
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(244,124,34,.27);
}
.primary:hover, .primary-inline:hover, .nav-cta:hover, button.primary:hover {
  background: linear-gradient(135deg, var(--koto-orange) 0%, var(--koto-orange-deep) 100%);
  box-shadow: 0 15px 34px rgba(223,103,20,.32);
}
.button.dark, .btn-navy { background: var(--koto-navy); }
.button.large, .cta-big { min-height: 58px; border-radius: 18px; }

.panel, .card, .mini-card, .side-card, .price-card, .auth-card, .auth-side,
.admin-card, .kpi-card, .stat-card, .next-card, .route-card-s {
  background: rgba(255,253,249,.96);
  border-color: rgba(16,52,87,.10);
  box-shadow: var(--koto-shadow-soft);
}
.panel, .card { border-radius: 24px; }
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"], input[type="month"], input[type="week"], textarea, select {
  color: var(--koto-navy);
  border-color: rgba(16,52,87,.16);
  border-radius: 14px;
  background: #fff;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--koto-orange);
  box-shadow: 0 0 0 4px rgba(244,124,34,.13);
}
.eyebrow, .hero-badge, .chip-blue, .step {
  color: var(--koto-blue-deep);
  background: var(--koto-blue-soft);
  border-color: rgba(46,141,183,.16);
}
.chip-gold, .score { color: var(--koto-orange-deep); background: var(--koto-orange-soft); border-color: rgba(244,124,34,.18); }
.ring { background: conic-gradient(var(--koto-orange) calc(var(--p) * 1%), var(--koto-blue-soft) 0); }
.progress-bar > i, .progress-fill { background: linear-gradient(90deg, var(--koto-blue), var(--koto-orange)); }
.mode-banner, .alert, .system-announcement, .maintenance-inline-banner { border-radius: 18px; }

/* ---------- Brand homepage ---------- */
.page-index .container { width: 100%; max-width: none; padding: 0 0 86px; overflow: hidden; }
.page-index .site-header-inner { width: min(1360px, calc(100% - 38px)); }
.page-index .site-footer { margin-top: 0; }

.koto-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 790px;
  padding: clamp(70px, 8vw, 118px) 22px clamp(78px, 8vw, 116px);
  background:
    radial-gradient(circle at 82% 10%, rgba(244,124,34,.12), transparent 24rem),
    radial-gradient(circle at 4% 48%, rgba(133,199,229,.14), transparent 23rem),
    linear-gradient(145deg, rgba(255,253,249,.92), rgba(250,246,238,.96));
}
.koto-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 620px;
  height: 370px;
  right: -130px;
  top: 60px;
  border-radius: 48% 52% 63% 37% / 58% 42% 58% 42%;
  background: rgba(244,124,34,.055);
  transform: rotate(-8deg);
}
.koto-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 520px;
  height: 330px;
  left: -190px;
  bottom: -130px;
  border-radius: 55% 45% 58% 42%;
  background: rgba(133,199,229,.085);
}
.koto-hero-inner {
  display: grid;
  grid-template-columns: minmax(0,.82fr) minmax(560px,1.18fr);
  gap: clamp(42px, 5.6vw, 88px);
  align-items: center;
  width: min(1360px, 100%);
  margin: 0 auto;
}
.koto-hero-copy { position: relative; z-index: 2; }
.koto-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  color: var(--koto-navy);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
}
.koto-kicker b { color: var(--koto-orange); }
.koto-kicker i { width: 34px; height: 1px; background: var(--koto-blue); }
.koto-hero h1 {
  margin: 0;
  color: var(--koto-navy);
  font-size: clamp(48px, 6vw, 86px);
  font-weight: 900;
  line-height: 1.17;
  letter-spacing: -.045em;
}
.koto-hero h1 em, .koto-section-heading em, .koto-flow-copy em { color: var(--koto-orange); font-style: normal; }
.koto-hero-line { display: block; }
.koto-hero-line + .koto-hero-line { margin-top: .04em; }
.koto-hero-copy > p {
  max-width: 610px;
  margin: 28px 0 0;
  color: #496078;
  font-size: clamp(16px, 1.35vw, 19px);
  font-weight: 600;
  line-height: 2;
}
.koto-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.koto-secondary-button { background: rgba(255,255,255,.74); backdrop-filter: blur(8px); }
.koto-trust-row { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 20px; color: #6d7b87; font-size: 12px; font-weight: 700; }
.koto-trust-row span { display: inline-flex; align-items: center; gap: 6px; }
.koto-trust-row svg { color: var(--koto-blue-deep); }

.koto-hero-stage { position: relative; min-width: 0; padding: 34px 0 24px; }
.koto-device {
  position: relative;
  z-index: 2;
  padding: 13px;
  border-radius: 32px;
  background: linear-gradient(150deg,#233743,#0c1822 70%);
  box-shadow: 0 34px 80px rgba(16,52,87,.24), 0 8px 20px rgba(16,52,87,.15);
  transform: perspective(1600px) rotateY(-4deg) rotateX(1deg);
}
.koto-device-camera { position: absolute; left: 50%; top: 5px; width: 5px; height: 5px; border-radius: 50%; background: #63737d; transform: translateX(-50%); }
.koto-device-screen { overflow: hidden; min-height: 620px; border-radius: 22px; background: #f8fbfc; }
.koto-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 62px;
  padding: 0 22px;
  border-bottom: 1px solid #dfe9ec;
  background: rgba(255,255,255,.96);
}
.koto-app-logo { display: flex; align-items: center; gap: 7px; color: var(--koto-navy); }
.koto-mini-mark { display: grid; width: 27px; height: 27px; place-items: center; overflow:hidden; border-radius: 9px; color: #fff; background: #0f1a33; box-shadow:0 5px 13px rgba(15,26,51,.22); }
.koto-mini-mark img { display:block;width:100%;height:100%;object-fit:cover; }
.koto-app-logo strong, .koto-flow-center > strong { font-size: 18px; letter-spacing: .04em; }
.koto-app-logo strong span, .koto-flow-center > strong span { color: var(--koto-orange); }
.koto-appbar nav { display: flex; gap: 4px; color: #73808d; font-size: 10px; font-weight: 800; }
.koto-appbar nav span { padding: 8px 9px; border-radius: 9px; }
.koto-appbar nav .is-active { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.koto-device-content { padding: 24px; }
.koto-device-welcome { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 18px; }
.koto-device-welcome span { color: #718293; font-size: 11px; font-weight: 750; }
.koto-device-welcome h2 { margin: 3px 0 0; font-size: 24px; }
.koto-progress-ring { display: grid; width: 62px; height: 62px; place-items: center; border-radius: 50%; background: conic-gradient(var(--koto-orange) 75%, #e3f1f6 0); }
.koto-progress-ring::before { content: ""; grid-area: 1/1; width: 48px; height: 48px; border-radius: 50%; background: #fff; }
.koto-progress-ring b { position: relative; z-index: 1; grid-area: 1/1; font-size: 12px; }
.koto-search-form { display: grid; gap: 13px; padding: 20px; border: 1px solid #dce8ed; border-radius: 20px; background: #fff; box-shadow: 0 12px 30px rgba(16,52,87,.07); }
.koto-search-form > label { font-size: 12px; }
.koto-input-shell { position: relative; }
.koto-input-shell textarea { min-height: 103px; margin: 0; padding: 15px 15px 30px; font-size: 14px; line-height: 1.7; }
.koto-input-shell .char-counter { right: 10px; bottom: 7px; }
.koto-example-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.koto-example-chips button { min-height: 32px; padding: 5px 12px; border-radius: 999px; color: var(--koto-navy); background: #f5fafc; box-shadow: none; font-size: 11px; }
.koto-example-chips button:hover, .koto-example-chips button.is-selected { color: var(--koto-orange-deep); border-color: var(--koto-orange); background: var(--koto-orange-soft); transform: none; box-shadow: none; }
.koto-search-bottom { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: end; }
.koto-time-field { margin: 0; padding: 0; border: 0; }
.koto-time-field legend { margin-bottom: 7px; color: #657789; font-size: 10px; font-weight: 800; }
.koto-time-pills { display: flex; gap: 6px; }
.koto-time-pills label { position: relative; }
.koto-time-pills input { position: absolute; opacity: 0; }
.koto-time-pills span { display: grid; min-width: 54px; min-height: 36px; place-items: center; border: 1px solid #dbe7eb; border-radius: 10px; background: #fff; color: #657789; font-size: 11px; font-weight: 800; }
.koto-time-pills input:checked + span { color: var(--koto-orange-deep); border-color: var(--koto-orange); background: var(--koto-orange-soft); box-shadow: 0 0 0 3px rgba(244,124,34,.09); }
.koto-search-submit { min-height: 48px; padding: 10px 18px; white-space: nowrap; }
.koto-plan-options { margin: 2px 0 0; padding: 9px 11px; border-radius: 13px; background: #f8fbfc; }
.koto-plan-options summary { font-size: 11px; }
.koto-plan-options .learning-plan-options-grid { gap: 10px; }
.koto-plan-options .learning-plan-options-grid label { gap: 6px; font-size: 11px; }
.koto-plan-options input, .koto-plan-options select { min-height: 44px; padding: 9px 12px; font-size: 12px; font-weight: 700; }
.koto-plan-options select { padding-right: 36px; }
.koto-plan-options p { display: none; }
.koto-floating-card-stack {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 18px 0;
  pointer-events: none;
}
.koto-floating-card {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 70px;
  align-items: center;
  gap: 10px;
  min-width: 0;
  max-width: none;
  padding: 12px 14px;
  border: 1px solid rgba(16,52,87,.09);
  border-radius: 17px;
  background: rgba(255,253,249,.97);
  box-shadow: 0 18px 36px rgba(16,52,87,.12);
  backdrop-filter: blur(10px);
}
.koto-floating-card > span { display: grid; flex: 0 0 35px; width: 35px; height: 35px; place-items: center; border-radius: 12px; color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.koto-floating-card > div { min-width: 0; }
.koto-floating-card small { display: block; color: #83909a; font-size: 9px; font-weight: 750; }
.koto-floating-card strong { display: block; overflow-wrap: anywhere; font-size: 12px; line-height: 1.35; }
.koto-floating-card > b { flex: 0 0 auto; margin-left: auto; color: var(--koto-orange); font-size: 11px; }
.koto-floating-card.is-right { justify-self: end; align-self: stretch; }
.koto-floating-card.is-right > span { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.koto-stage-orb { position: absolute; border-radius: 50%; }
.koto-stage-orb.is-orange { width: 130px; height: 130px; right: -44px; top: -10px; background: rgba(244,124,34,.12); }
.koto-stage-orb.is-blue { width: 86px; height: 86px; left: -28px; bottom: 20px; background: rgba(133,199,229,.22); }

.koto-route-line { position: absolute; pointer-events: none; }
.koto-route-line::before { content: ""; position: absolute; inset: 0; border: 2px dashed rgba(244,124,34,.48); border-color: rgba(244,124,34,.48) transparent transparent transparent; border-radius: 50%; transform: rotate(8deg); }
.koto-route-line i { position: absolute; width: 13px; height: 13px; border: 3px solid #fff; border-radius: 50%; background: var(--koto-orange); box-shadow: 0 2px 8px rgba(16,52,87,.15); }
.koto-route-line i:nth-child(even) { background: var(--koto-blue); }
.koto-route-line-one { width: 620px; height: 230px; top: -126px; left: 28%; transform: rotate(2deg); }
.koto-route-line-one i:nth-child(1) { left: 25%; bottom: 14px; }.koto-route-line-one i:nth-child(2) { left: 51%; top: 33px; }.koto-route-line-one i:nth-child(3) { right: 14%; bottom: 42px; }.koto-route-line-one i:nth-child(4) { right: 0; top: 45%; }

.koto-section { position: relative; width: min(1240px, calc(100% - 36px)); margin: 0 auto; padding: clamp(76px, 8vw, 118px) 0; }
.koto-section-heading { max-width: 820px; margin: 0 auto 38px; text-align: center; }
.koto-section-heading.is-left { margin-left: 0; text-align: left; }
.koto-section-heading > span, .koto-section-label { display: inline-flex; align-items: center; gap: 8px; color: var(--koto-orange); font-size: 13px; font-weight: 850; letter-spacing: .08em; }
.koto-section-heading > span::after, .koto-section-label::after { content: ""; width: 34px; height: 2px; border-radius: 99px; background: var(--koto-blue); }
.koto-section-heading h2, .koto-flow-copy h2 { margin: 13px 0 12px; font-size: clamp(34px, 4.8vw, 60px); line-height: 1.35; letter-spacing: -.035em; }
.koto-section-heading p, .koto-flow-copy p { color: #637386; font-size: 15px; line-height: 1.9; }

.koto-pain-section { width: min(1280px, calc(100% - 36px)); }
.koto-pain-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.koto-pain-grid article { padding: 24px; border: 1px solid rgba(16,52,87,.09); border-radius: 22px; background: rgba(255,253,249,.94); box-shadow: var(--koto-shadow-soft); }
.koto-pain-grid article > span { display: grid; width: 48px; height: 48px; place-items: center; margin-bottom: 18px; border-radius: 17px; color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.koto-pain-grid article:nth-child(odd) > span { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.koto-pain-grid h3 { font-size: 17px; }
.koto-pain-grid p { margin: 0; color: #6c7884; font-size: 13px; line-height: 1.8; }

.koto-flow-section { display: grid; grid-template-columns: minmax(0,.82fr) minmax(540px,1.18fr); gap: clamp(42px,7vw,96px); align-items: center; }
.koto-flow-copy .button { margin-top: 16px; }
.koto-flow-board { position: relative; min-height: 600px; border: 1px solid rgba(16,52,87,.09); border-radius: 38px; background: radial-gradient(circle at 50% 50%, #fff 0 27%, transparent 28%), linear-gradient(145deg,#fffdf9,#f1f8fb); box-shadow: var(--koto-shadow); overflow: hidden; }
.koto-flow-board::before { content: ""; position: absolute; width: 480px; height: 480px; left: 50%; top: 50%; border: 2px solid rgba(133,199,229,.42); border-radius: 48% 52% 47% 53%; transform: translate(-50%,-50%) rotate(-13deg); }
.koto-flow-board::after { content: ""; position: absolute; width: 410px; height: 505px; left: 50%; top: 50%; border: 2px dashed rgba(244,124,34,.36); border-radius: 51% 49% 56% 44%; transform: translate(-50%,-50%) rotate(24deg); }
.koto-flow-center { position: absolute; z-index: 3; left: 50%; top: 50%; display: grid; justify-items: center; gap: 8px; width: 210px; padding: 25px 20px; border: 1px solid rgba(16,52,87,.09); border-radius: 25px; background: #fff; box-shadow: 0 18px 40px rgba(16,52,87,.12); transform: translate(-50%,-50%); }
.koto-flow-center small { color: #758594; font-weight: 750; }
.koto-flow-progress { width: 100%; height: 9px; border-radius: 999px; background: #e8f3f7; overflow: hidden; }
.koto-flow-progress i { display: block; width: 72%; height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--koto-blue),var(--koto-orange)); }
.koto-flow-board ol { list-style: none; margin: 0; padding: 0; }
.koto-flow-board li { position: absolute; z-index: 4; display: grid; grid-template-columns: auto auto; gap: 3px 8px; align-items: center; min-width: 150px; padding: 13px 15px; border: 1px solid rgba(16,52,87,.09); border-radius: 18px; background: rgba(255,253,249,.96); box-shadow: var(--koto-shadow-soft); }
.koto-flow-board li > b { display: grid; grid-row: span 2; width: 31px; height: 31px; place-items: center; border-radius: 50%; color: #fff; background: var(--koto-orange); font-size: 12px; }
.koto-flow-board li > span { color: var(--koto-blue-deep); line-height: 1; }
.koto-flow-board li > strong { font-size: 12px; }
.koto-flow-board .is-one { left: 36px; top: 68px; }.koto-flow-board .is-two { right: 27px; top: 108px; }.koto-flow-board .is-three { right: 30px; bottom: 105px; }.koto-flow-board .is-four { left: 48%; bottom: 35px; transform: translateX(-50%); }.koto-flow-board .is-five { left: 25px; bottom: 130px; }
.koto-flow-board .is-two > b, .koto-flow-board .is-four > b { background: var(--koto-blue-deep); }

.koto-experience-section { width: min(1320px, calc(100% - 36px)); }
.koto-experience-track { position: relative; display: grid; grid-template-columns: repeat(5,1fr); gap: 14px; padding: 54px 0 38px; }
.koto-experience-track::before { content: ""; position: absolute; left: 4%; right: 4%; top: 93px; height: 86px; border-top: 9px solid rgba(133,199,229,.52); border-radius: 50%; transform: rotate(1deg); }
.koto-experience-track article { position: relative; z-index: 2; min-height: 230px; padding: 22px 18px; border: 1px solid rgba(16,52,87,.09); border-radius: 22px; background: rgba(255,253,249,.96); box-shadow: var(--koto-shadow-soft); }
.koto-experience-track article:nth-child(even) { margin-top: 42px; }
.koto-experience-track article > b { display: inline-flex; padding: 5px 10px; border: 2px solid var(--koto-blue); border-radius: 999px; color: var(--koto-blue-deep); background: #fff; font-size: 11px; }
.koto-experience-track article > span { display: grid; width: 48px; height: 48px; place-items: center; margin: 22px 0 15px; border-radius: 16px; color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.koto-experience-track h3 { font-size: 17px; }
.koto-experience-track p { margin: 0; color: #6c7884; font-size: 12.5px; line-height: 1.75; }
.koto-experience-track .is-goal { border-color: rgba(244,124,34,.28); background: linear-gradient(145deg,#fff,#fff4e8); }
.koto-experience-track .is-goal > b { border-color: var(--koto-orange); color: var(--koto-orange-deep); }

.koto-features-section { width: min(1280px, calc(100% - 36px)); }
.koto-feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.koto-feature-grid article { min-height: 190px; padding: 24px; border: 1px solid rgba(16,52,87,.09); border-radius: 22px; background: rgba(255,253,249,.96); box-shadow: var(--koto-shadow-soft); transition: transform .18s ease, box-shadow .18s ease; }
.koto-feature-grid article:hover { transform: translateY(-4px); box-shadow: var(--koto-shadow); }
.koto-feature-grid article > span { display: grid; width: 50px; height: 50px; place-items: center; margin-bottom: 18px; border-radius: 50%; color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.koto-feature-grid article:nth-child(3n+1) > span, .koto-feature-grid article:nth-child(3n) > span { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.koto-feature-grid h3 { font-size: 18px; }
.koto-feature-grid p { margin: 0; color: #6c7884; font-size: 13px; line-height: 1.8; }

.koto-scenes-section { width: min(1320px, calc(100% - 36px)); }
.koto-scene-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.koto-scene-grid article { overflow: hidden; border: 1px solid rgba(16,52,87,.09); border-radius: 24px; background: #fff; box-shadow: var(--koto-shadow-soft); }
.koto-scene-grid article > span { display: inline-flex; margin: 17px 0 0; padding: 8px 20px; border-radius: 0 999px 999px 0; color: var(--koto-navy); background: var(--koto-blue-soft); font-size: 15px; font-weight: 850; }
.koto-scene-art { position: relative; display: grid; height: 250px; place-items: center; margin: 14px 17px; border-radius: 20px; color: var(--koto-navy); background: linear-gradient(145deg,#f9fbfb,#ecf7fb); overflow: hidden; }
.koto-scene-art::before, .koto-scene-art::after { content: ""; position: absolute; border-radius: 50%; }
.koto-scene-art::before { width: 170px; height: 170px; left: -55px; bottom: -62px; background: rgba(244,124,34,.11); }
.koto-scene-art::after { width: 140px; height: 140px; right: -40px; top: -45px; background: rgba(133,199,229,.19); }
.koto-scene-art > svg { position: relative; z-index: 2; width: 72px; height: 72px; color: var(--koto-orange); }
.koto-scene-art i { position: absolute; z-index: 1; width: 190px; height: 126px; border: 2px solid rgba(16,52,87,.13); border-radius: 22px; background: rgba(255,255,255,.62); }
.koto-scene-art b { position: absolute; z-index: 3; right: 25%; bottom: 20%; display: grid; width: 56px; height: 56px; place-items: center; border-radius: 18px; color: var(--koto-blue-deep); background: #fff; box-shadow: var(--koto-shadow-soft); }
.koto-scene-grid h3 { margin: 0; padding: 0 22px 24px; font-size: 18px; }

.koto-support-section { padding-bottom: 130px; }
.koto-role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.koto-role-grid article { display: grid; grid-template-columns: auto 1fr; gap: 18px; padding: 28px; border: 1px solid rgba(16,52,87,.09); border-radius: 24px; background: rgba(255,253,249,.96); box-shadow: var(--koto-shadow-soft); }
.koto-role-icon { display: grid; width: 62px; height: 62px; place-items: center; border-radius: 21px; }
.koto-role-icon.is-orange { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }.koto-role-icon.is-blue { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.koto-role-grid small { color: var(--koto-orange); font-weight: 850; letter-spacing: .08em; }
.koto-role-grid h3 { margin: 5px 0 9px; font-size: 22px; }
.koto-role-grid p { margin: 0; color: #667789; font-size: 13.5px; line-height: 1.85; }
.koto-support-note { display: flex; align-items: center; gap: 14px; width: max-content; max-width: 100%; margin: 22px auto 0; padding: 14px 22px; border-radius: 999px; color: var(--koto-navy); background: #fff; border: 1px solid rgba(16,52,87,.09); box-shadow: var(--koto-shadow-soft); font-size: 13px; }
.koto-support-note svg { color: var(--koto-orange); flex: 0 0 auto; }

.koto-final-cta { position: relative; isolation: isolate; overflow: hidden; width: min(1180px, calc(100% - 36px)); margin: 0 auto; padding: 92px 24px; border: 1px solid rgba(16,52,87,.09); border-radius: 36px; text-align: center; background: linear-gradient(145deg,#fffdf9,#f5f1e9); box-shadow: var(--koto-shadow); }
.koto-final-cta::before { content: ""; position: absolute; z-index: -1; width: 420px; height: 420px; left: -250px; top: -230px; border-radius: 50%; background: rgba(133,199,229,.13); }
.koto-final-cta::after { content: ""; position: absolute; z-index: -1; width: 360px; height: 360px; right: -190px; bottom: -210px; border-radius: 50%; background: rgba(244,124,34,.10); }
.koto-final-cta > span { color: var(--koto-orange); font-size: 14px; font-weight: 850; letter-spacing: .12em; }
.koto-final-cta h2 { margin: 10px 0 8px; font-size: clamp(56px,8vw,96px); letter-spacing: .01em; }
.koto-final-cta h2 span { color: var(--koto-orange); }
.koto-final-cta p { color: #637386; font-size: 16px; }
.koto-final-cta > div:not(.koto-route-line) { display: flex; justify-content: center; gap: 12px; margin-top: 24px; }
.koto-final-cta > small { display: block; margin-top: 14px; color: #7d8994; }
.koto-route-line-two { width: 430px; height: 150px; right: -65px; top: -70px; }
.koto-route-line-two i:nth-child(1) { left: 13%; bottom: 4px; }.koto-route-line-two i:nth-child(2) { left: 50%; top: 12px; }.koto-route-line-two i:nth-child(3) { right: 8%; bottom: 24px; }

/* ---------- Public system screens ---------- */
.public-app:not(.page-index) .container { width: min(1260px, calc(100% - 34px)); padding-top: 30px; }
.public-app:not(.page-index) main.container::before {
  content: "";
  position: fixed;
  z-index: -1;
  width: 480px;
  height: 270px;
  right: -190px;
  top: 160px;
  border: 2px dashed rgba(244,124,34,.17);
  border-radius: 50%;
  transform: rotate(14deg);
}
.result-head h1, .dash-greet h1, .admin-page-head h1, .watch-topline h1 { color: var(--koto-navy); }
.result-head .lead strong { color: var(--koto-orange-deep); }
.route-step .step-marker, .save-icon { background: var(--koto-orange); }
.step-role, .rec-badge { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.video-card, .player-card, .study-session-player-card { border-color: rgba(16,52,87,.10); box-shadow: var(--koto-shadow-soft); }
.reason-block, .ai-hint, .study-session-focus { background: var(--koto-blue-soft); border-color: rgba(133,199,229,.26); }

/* Parent/dashboard and admin sidebars match the brochure's navy control panel. */
.dash-layout { grid-template-columns: 238px minmax(0,1fr) 296px; }
.dash-nav, .admin-sidebar {
  color: #fff;
  border-color: rgba(16,52,87,.16);
  background: linear-gradient(180deg,#12395d 0%,#0b2c4c 100%);
  box-shadow: 0 18px 42px rgba(16,52,87,.19);
}
.dash-nav a, .dash-nav .dash-nav-item, .admin-sidebar a { color: rgba(255,255,255,.76); }
.dash-nav a:hover, .admin-sidebar a:hover { color: #fff; background: rgba(255,255,255,.08); }
.dash-nav a.active, .admin-sidebar a.active { color: #fff; background: linear-gradient(135deg,rgba(244,124,34,.95),rgba(244,124,34,.73)); box-shadow: none; }
.dash-nav hr, .admin-sidebar hr { border-top-color: rgba(255,255,255,.12); }
.dash-nav .primary { color: var(--koto-navy); background: #fff; box-shadow: none; }
.admin-sidebar .sidebar-foot, .admin-sidebar .sidebar-foot strong { color: rgba(255,255,255,.74); }
.plan-chip-card { background: #fffdf9; }
.plan-chip-card .plan-name { color: var(--koto-orange-deep); }
.stat-card { min-height: 104px; border-radius: 20px; }
.stat-card .icon-bubble { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.today-learning-card { border-radius: 26px; border-color: rgba(244,124,34,.20); background: linear-gradient(145deg,#fffdf9,#fff4e8); box-shadow: var(--koto-shadow-soft); }
.today-learning-eyebrow { color: var(--koto-orange-deep); }
.route-card-s, .next-card { border-radius: 21px; }

/* Family/child surfaces */
.family-shell, .practice-shell, .child-home-shell { gap: 24px; }
.family-hero, .practice-hero, .child-home-hero {
  border-color: rgba(16,52,87,.09);
  border-radius: 32px;
  background:
    radial-gradient(circle at 88% 10%, rgba(244,124,34,.13), transparent 34%),
    radial-gradient(circle at 6% 88%, rgba(133,199,229,.15), transparent 31%),
    linear-gradient(145deg,#fffdf9,#f7f4ed);
  box-shadow: var(--koto-shadow);
}
.family-hero h1, .practice-hero h1, .child-home-hero h1 { color: var(--koto-navy); }
.family-hero h1 em, .practice-hero h1 em { color: var(--koto-orange); }
.family-count-card, .practice-progress-card, .child-today-progress { border-color: rgba(16,52,87,.08); background: rgba(255,255,255,.86); }
.child-kicker { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.child-today-progress i, .practice-progress-track i { background: linear-gradient(90deg,var(--koto-blue),var(--koto-orange)); }
.child-assignment-card, .family-child-card { border-color: rgba(16,52,87,.10); background: #fffdf9; box-shadow: var(--koto-shadow-soft); }
.child-assignment-card.is-first { border-color: var(--koto-orange); }
.child-assignment-number { color: #f1e9dd; }
.child-avatar { background: linear-gradient(145deg,var(--koto-blue-deep),var(--koto-blue)); }
.child-self-power { background: linear-gradient(135deg,var(--koto-blue-soft),var(--koto-orange-soft)); }
.child-self-power-icon { color: var(--koto-orange); }
.child-read-aloud { background: var(--koto-navy); }
.family-progress-grid > div, .family-request-list > div, .family-settings-grid .check { background: #f4fafc; }
.request-status { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }

/* Practice, assessment, handwriting */
.practice-question, .practice-result-card, .practice-complete { border-color: rgba(16,52,87,.10); background: #fffdf9; box-shadow: var(--koto-shadow-soft); }
.practice-step-badge { background: var(--koto-navy); }
.practice-type-chip { color: var(--koto-orange-deep); background: var(--koto-orange-soft); }
.practice-choice-grid input:checked + span { border-color: var(--koto-orange); background: var(--koto-orange-soft); box-shadow: 0 0 0 4px rgba(244,124,34,.10); }
.practice-choice-grid label > span > b { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.practice-hints { background: #fff7e9; }
.handwriting-paper, .handwriting-canvas-wrap { background-color: #fffefb; }
.handwriting-problem-print { border-bottom-color: rgba(16,52,87,.11); background: #fffdf9; }
.practice-ai-reading, .practice-goal-connection { border-color: var(--koto-blue); background: var(--koto-blue-soft); }
.practice-goal-connection strong { color: var(--koto-blue-deep); }
.practice-ai-feedback-grid > div { background: var(--koto-blue-soft); }
.practice-ai-feedback-grid > div + div { background: var(--koto-orange-soft); }
.assessment-result.is-correct .panel { border-top-color: var(--koto-blue); }

/* Study session / video learning */
.study-session-shell { max-width: 1260px; }
.study-session-summary { border-radius: 22px; background: #fffdf9; box-shadow: var(--koto-shadow-soft); }
.study-session-layout { gap: 22px; }
.study-session-player-card { border-radius: 25px; overflow: hidden; }
.study-session-player-meta { background: #fffdf9; }
.study-session-focus { border-radius: 18px; }
.study-session-next { border-radius: 22px; background: linear-gradient(145deg,#fffdf9,#fff4e8); }
.study-session-side-card { border-color: rgba(16,52,87,.10); border-radius: 20px; background: #fffdf9; box-shadow: var(--koto-shadow-soft); }

/* Auth and settings */
.auth-card { border-radius: 28px; }
.auth-side { border-radius: 28px; background: linear-gradient(145deg,var(--koto-blue-soft),#fffdf9 65%,var(--koto-orange-soft)); }
.google-login-button { border-radius: 15px; }

/* Admin */
.admin-topbar { background: rgba(255,253,249,.94); border-bottom-color: rgba(16,52,87,.09); }
.admin-badge { color: var(--koto-orange-deep); background: var(--koto-orange-soft); border-color: rgba(244,124,34,.16); }
.admin-avatar { background: var(--koto-navy); }
.kpi-card { border-radius: 20px; }
.kpi-card .icon-bubble { color: var(--koto-blue-deep); background: var(--koto-blue-soft); }
.admin-card { border-radius: 23px; }
.mode-option.current { border-color: var(--koto-orange); background: var(--koto-orange-soft); }
.admin-table thead th, .check-table thead th, .data-table thead th { background: var(--koto-blue-soft); }

/* Footer */
.site-footer { color: var(--koto-navy); border-top-color: rgba(16,52,87,.09); background: linear-gradient(180deg,#fffdf9,#f6f1e8); }
.site-footer a { color: var(--koto-navy); }
.footer-bottom { border-top-color: rgba(16,52,87,.08); }
.guide-fab { background: linear-gradient(135deg,var(--koto-orange),var(--koto-orange-deep)); box-shadow: 0 12px 28px rgba(244,124,34,.28); }
.mobile-tabbar { background: rgba(255,253,249,.95); border-top-color: rgba(16,52,87,.10); }
.mobile-tabbar a.is-active { color: var(--koto-orange-deep); }

/* ---------- Responsive ---------- */
@media (max-width: 1120px) {
  .koto-hero-inner { grid-template-columns: 1fr; width: min(820px,100%); }
  .koto-hero-copy { text-align: center; }
  .koto-hero-copy > p { margin-inline: auto; }
  .koto-hero-actions, .koto-trust-row { justify-content: center; }
  .koto-hero-stage { margin-top: 12px; }
  .koto-floating-card-stack { margin: 16px 10px 0; gap: 12px; }
  .koto-floating-card { min-height: 68px; }
  .koto-flow-section { grid-template-columns: 1fr; width: min(880px,calc(100% - 36px)); }
  .koto-flow-copy { text-align: center; }
  .koto-flow-copy p { max-width: 720px; margin-inline: auto; }
  .koto-pain-grid { grid-template-columns: repeat(2,1fr); }
  .koto-experience-track { grid-template-columns: repeat(3,1fr); }
  .koto-experience-track::before { display: none; }
  .koto-experience-track article:nth-child(even) { margin-top: 0; }
  .koto-feature-grid { grid-template-columns: repeat(2,1fr); }
  .dash-layout { grid-template-columns: 220px minmax(0,1fr); }
  .dash-layout > :last-child { grid-column: 2; }
}

@media (max-width: 900px) {
  .koto-device { transform: none; }
  .koto-floating-card-stack {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 14px 0 0;
    padding: 0;
  }
  .koto-floating-card { width: 100%; max-width: none; }
  .koto-floating-card.is-right { justify-self: stretch; align-self: stretch; }
  .koto-device-screen { min-height: auto; }
  .koto-role-grid { grid-template-columns: 1fr; }
  .koto-scene-grid { grid-template-columns: 1fr; }
  .dash-layout { grid-template-columns: 1fr; }
  .dash-nav { position: static; display: flex; overflow-x: auto; border-radius: 18px; padding: 9px; }
  .dash-nav a { flex: 0 0 auto; }
  .dash-nav hr, .dash-nav .primary { display: none; }
  .dash-layout > :last-child { grid-column: auto; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; display: flex; overflow-x: auto; }
  .admin-sidebar a { flex: 0 0 auto; }
}

@media (max-width: 700px) {
  .site-header-inner { min-height: 64px; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-text strong { font-size: 16px; }
  .brand-text small { display: none; }
  .koto-hero { min-height: 0; padding: 52px 15px 70px; }
  .koto-hero h1 { font-size: clamp(43px,13vw,62px); line-height: 1.2; }
  .koto-hero-copy > p br { display: none; }
  .koto-hero-line + .koto-hero-line { margin-top: .08em; }
  .koto-hero-actions { display: grid; }
  .koto-hero-actions .button { width: 100%; }
  .koto-trust-row { justify-content: flex-start; text-align: left; }
  .koto-device { padding: 8px; border-radius: 24px; }
  .koto-device-screen { border-radius: 17px; }
  .koto-appbar { padding: 0 13px; }
  .koto-appbar nav { display: none; }
  .koto-device-content { padding: 15px; }
  .koto-device-welcome h2 { font-size: 20px; }
  .koto-progress-ring { width: 54px; height: 54px; }
  .koto-progress-ring::before { width: 42px; height: 42px; }
  .koto-search-form { padding: 15px; }
  .koto-search-bottom { grid-template-columns: 1fr; }
  .koto-time-pills { display: grid; grid-template-columns: repeat(3,1fr); }
  .koto-time-pills span { min-width: 0; }
  .koto-search-submit { width: 100%; }
  .koto-section { width: min(100% - 28px,1240px); padding: 68px 0; }
  .koto-section-heading h2, .koto-flow-copy h2 { font-size: clamp(32px,10vw,46px); }
  .koto-pain-grid, .koto-feature-grid { grid-template-columns: 1fr; }
  .koto-flow-board { min-height: 700px; border-radius: 26px; }
  .koto-flow-board::before { width: 350px; height: 560px; }
  .koto-flow-board::after { width: 300px; height: 610px; }
  .koto-flow-board .is-one { left: 18px; top: 42px; }
  .koto-flow-board .is-two { right: 18px; top: 145px; }
  .koto-flow-board .is-three { right: 18px; bottom: 135px; }
  .koto-flow-board .is-four { left: 50%; bottom: 35px; }
  .koto-flow-board .is-five { left: 18px; bottom: 165px; }
  .koto-experience-track { grid-template-columns: 1fr; padding-top: 20px; }
  .koto-experience-track article { min-height: 0; }
  .koto-scene-art { height: 210px; }
  .koto-role-grid article { grid-template-columns: 1fr; }
  .koto-support-note { align-items: flex-start; width: 100%; border-radius: 22px; }
  .koto-final-cta { width: min(100% - 28px,1180px); padding: 72px 18px; border-radius: 28px; }
  .koto-final-cta h2 { font-size: clamp(52px,18vw,76px); }
  .koto-final-cta > div:not(.koto-route-line) { display: grid; }
  .koto-final-cta .button { width: 100%; }
  .stat-cards { grid-template-columns: 1fr 1fr; }
  .family-hero, .practice-hero, .child-home-hero { grid-template-columns: 1fr; padding: 27px 20px; border-radius: 25px; }
  .child-assignment-grid { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .koto-hero h1 { font-size: 42px; }
  .koto-kicker { align-items: flex-start; text-align: left; font-size: 11px; }
  .koto-device-welcome { align-items: flex-start; }
  .koto-progress-ring { flex: 0 0 auto; }
  .koto-example-chips button { flex: 1 1 calc(50% - 7px); justify-content: center; }
  .koto-flow-board li { min-width: 132px; padding: 10px; }
  .koto-flow-center { width: 178px; }
  .stat-cards { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .koto-device, .koto-feature-grid article { transform: none !important; transition: none !important; }
}

@media (max-width: 760px) {
  .koto-floating-card-stack { grid-template-columns: 1fr; }
  .koto-floating-card { min-height: 62px; }
}


/* Mobile dashboard navigation hard fix (v99.1) */
@media (max-width: 900px) {
  .dash-layout > .desktop-dash-nav {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    border: 0 !important;
  }
}

/*
 * V262 critical contrast fallback.
 * This foundational stylesheet is loaded by both older and current View.php
 * releases. The rules are duplicated in the dedicated final V262 layer so a
 * partially deployed server or stale PHP opcode cache still paints the three
 * reported homepage elements with explicit contrast.
 */
body.page-index #main-content .koto-experience-track > article > b,
body.page-index #main-content .koto-experience-track > article.is-goal > b,
body.page-index #main-content .koto-learning-range-grid > article > ul > li {
  border-color: #7cb8dc !important;
  background: #ffffff !important;
  color: #000000 !important;
  -webkit-text-fill-color: #000000 !important;
  -webkit-text-stroke-color: #000000 !important;
  font-weight: 900 !important;
  text-shadow: none !important;
  filter: none !important;
  mix-blend-mode: normal !important;
  opacity: 1 !important;
}

body.page-index #main-content .koto-scene-grid .koto-scene-art > b {
  border: 2px solid #8b6cff !important;
  background: #3d247f !important;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  box-shadow: 0 10px 24px rgba(34, 18, 92, .30) !important;
  filter: none !important;
  mix-blend-mode: normal !important;
  opacity: 1 !important;
}

body.page-index #main-content .koto-scene-grid .koto-scene-art > b > svg {
  color: #ffffff !important;
  stroke: #ffffff !important;
  filter: none !important;
  opacity: 1 !important;
}

body #main-content .practice-processing-overlay .practice-processing-card::before,
body #main-content .practice-processing-overlay .practice-processing-card::after {
  display: none !important;
  content: none !important;
  animation: none !important;
}

body #main-content .practice-processing-overlay .practice-processing-card {
  background: linear-gradient(145deg, #071f45, #0b315c) !important;
  color: #ffffff !important;
}

body #main-content .practice-processing-overlay .practice-processing-card
  :is(h1, h2, h3, strong, .eyebrow, .practice-processing-stages > li,
      [data-processing-cancel], [data-dekiru-processing-cancel]) {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  text-shadow: none !important;
  opacity: 1 !important;
}