/* ==========================================================================
   おもちゃ帳 紹介サイト共通スタイル

   デザイントークンは app/lib/ui/theme/app_tokens.dart と値を一致させている。
   モチーフ: おもちゃ箱を開けたときの色とりどりのクレヨン・積み木。
   ライト/ダーク両対応(prefers-color-scheme)。
   ========================================================================== */

:root {
  /* --- ブランドカラー(ライト) --- */
  --color-primary: #e8543d; /* クレヨンレッド */
  --color-on-primary: #fffbf5;
  --color-primary-container: #ffdacf;
  --color-on-primary-container: #7a2311;

  --color-accent: #f2a73b; /* マリーゴールドイエロー */
  --color-on-accent: #3d2600;

  /* --- 背景・面 --- */
  --color-background: #fff8ec; /* クリーム地 */
  --color-surface: #ffffff;
  --color-surface-alt: #fcefdc;
  --color-on-surface: #3b2a22;
  --color-on-surface-muted: #7a6a5f;
  --color-outline: #e4d3c2;

  /* --- 状態3色 --- */
  --color-want: #f2a73b;
  --color-on-want: #3d2600;
  --color-planned: #2f8fa6;
  --color-on-planned: #ffffff;
  --color-bought: #4c9a5b;
  --color-on-bought: #ffffff;

  /* --- 積み木モチーフ用の追加色(装飾のみ) --- */
  --block-blue: #2f8fa6;
  --block-green: #4c9a5b;
  --block-yellow: #f2a73b;
  --block-red: #e8543d;

  /* --- 余白スケール --- */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 72px;

  /* --- 角丸スケール --- */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  /* --- タイポグラフィ --- */
  --font-heading: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", sans-serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;

  /* --- シャドウ --- */
  --shadow-soft: 0 12px 32px -12px rgba(122, 35, 17, 0.28);
  --shadow-card: 0 8px 20px -10px rgba(59, 42, 34, 0.22);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #ff7a5c;
    --color-on-primary: #3c0d02;
    --color-primary-container: #6b2314;
    --color-on-primary-container: #ffdacf;

    --color-accent: #f7bb56;
    --color-on-accent: #3d2600;

    --color-background: #241a14; /* 濃いウッドブラウン */
    --color-surface: #2e2119;
    --color-surface-alt: #3a2b20;
    --color-on-surface: #f3e9df;
    --color-on-surface-muted: #c9b8aa;
    --color-outline: #544234;

    --color-want: #f7bb56;
    --color-on-want: #3d2600;
    --color-planned: #6fc3da;
    --color-on-planned: #00303b;
    --color-bought: #8fd39c;
    --color-on-bought: #0b3512;

    --block-blue: #6fc3da;
    --block-green: #8fd39c;
    --block-yellow: #f7bb56;
    --block-red: #ff7a5c;

    --shadow-soft: 0 16px 36px -14px rgba(0, 0, 0, 0.55);
    --shadow-card: 0 10px 24px -12px rgba(0, 0, 0, 0.5);

    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-background);
  color: var(--color-on-surface);
  font-size: 18px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 8% 8%, color-mix(in srgb, var(--color-accent) 14%, transparent) 0%, transparent 42%),
    radial-gradient(circle at 92% 18%, color-mix(in srgb, var(--color-primary) 12%, transparent) 0%, transparent 45%),
    radial-gradient(circle at 50% 100%, color-mix(in srgb, var(--color-planned) 10%, transparent) 0%, transparent 50%);
  background-attachment: fixed;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 var(--space-md);
  color: var(--color-on-surface);
}

p {
  margin: 0 0 var(--space-md);
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --- 積み木モチーフの装飾ブロック --- */
.toy-block {
  border-radius: var(--radius-md);
  display: inline-block;
}

/* ==========================================================================
   ヘッダー
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--color-background) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-outline);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.brand__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.brand__type {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-on-surface);
  letter-spacing: 0.02em;
}

.brand__type span {
  color: var(--color-primary);
  display: inline-block;
  transform: rotate(-4deg);
}

.site-nav {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--color-on-surface);
  font-weight: 700;
  text-decoration: none;
  padding: var(--space-sm) var(--space-xs);
  border-bottom: 3px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* ==========================================================================
   ヒーロー
   ========================================================================== */

.hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-primary-container);
  color: var(--color-on-primary-container);
  font-weight: 700;
  font-size: 0.95rem;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  margin-bottom: var(--space-lg);
}

.hero h1 .accent {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero__sub {
  font-size: 1.15rem;
  color: var(--color-on-surface-muted);
  max-width: 46ch;
  margin-bottom: var(--space-xl);
}

.hero__cta-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- ストアダウンロードボタン --- */
.store-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 52px;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.store-btn:hover,
.store-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.store-btn__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.store-btn--apple {
  background: var(--color-on-surface);
  color: var(--color-background);
}

.store-btn--google {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.hero__note {
  color: var(--color-on-surface-muted);
  font-size: 0.95rem;
}

/* --- ヒーロー右側: 積み木ビジュアル --- */
.hero__visual {
  position: relative;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.block-stage {
  position: relative;
  width: 100%;
  max-width: 340px;
  height: 340px;
}

.block-stage .toy-block {
  position: absolute;
  box-shadow: var(--shadow-card);
}

.block-stage .icon-plate {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 190px;
  height: 190px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  z-index: 5;
}

.b1 { width: 108px; height: 108px; background: var(--block-red); top: 4%; left: 6%; }
.b2 { width: 84px; height: 84px; background: var(--block-yellow); top: 8%; right: 4%; transform: rotate(10deg); }
.b3 { width: 96px; height: 96px; background: var(--block-blue); bottom: 6%; left: 2%; transform: rotate(-8deg); }
.b4 { width: 100px; height: 100px; background: var(--block-green); bottom: 0; right: 8%; transform: rotate(6deg); }

/* --- ページロード演出(積み木が順番に現れる) --- */
@keyframes block-drop {
  0% {
    opacity: 0;
    transform: translateY(-28px) scale(0.7) rotate(var(--rot, 0deg));
  }
  60% {
    opacity: 1;
    transform: translateY(6px) scale(1.03) rotate(var(--rot, 0deg));
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1) rotate(var(--rot, 0deg));
  }
}

@keyframes rise-fade {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__eyebrow,
.hero h1,
.hero__sub,
.hero__cta-row,
.hero__note {
  animation: rise-fade 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero__eyebrow { animation-delay: 0.05s; }
.hero h1 { animation-delay: 0.16s; }
.hero__sub { animation-delay: 0.28s; }
.hero__cta-row { animation-delay: 0.4s; }
.hero__note { animation-delay: 0.5s; }

.block-stage .icon-plate {
  --rot: 0deg;
  animation: block-drop 0.75s cubic-bezier(0.22, 0.9, 0.3, 1.1) both;
  animation-delay: 0.15s;
}

.b1 { --rot: 0deg; animation: block-drop 0.7s cubic-bezier(0.22, 0.9, 0.3, 1.1) both; animation-delay: 0.35s; }
.b2 { --rot: 10deg; animation: block-drop 0.7s cubic-bezier(0.22, 0.9, 0.3, 1.1) both; animation-delay: 0.5s; }
.b3 { --rot: -8deg; animation: block-drop 0.7s cubic-bezier(0.22, 0.9, 0.3, 1.1) both; animation-delay: 0.65s; }
.b4 { --rot: 6deg; animation: block-drop 0.7s cubic-bezier(0.22, 0.9, 0.3, 1.1) both; animation-delay: 0.8s; }

@media (prefers-reduced-motion: reduce) {
  .hero__eyebrow,
  .hero h1,
  .hero__sub,
  .hero__cta-row,
  .hero__note,
  .block-stage .icon-plate,
  .b1, .b2, .b3, .b4 {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ==========================================================================
   区切り(積み木モチーフのディバイダー)
   ========================================================================== */

.block-divider {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
}

.block-divider span {
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.block-divider span:nth-child(1) { background: var(--block-red); transform: rotate(-6deg); }
.block-divider span:nth-child(2) { background: var(--block-yellow); transform: rotate(4deg); }
.block-divider span:nth-child(3) { background: var(--block-blue); transform: rotate(-4deg); }
.block-divider span:nth-child(4) { background: var(--block-green); transform: rotate(6deg); }

/* ==========================================================================
   セクション共通
   ========================================================================== */

section {
  padding: var(--space-3xl) 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  text-align: center;
}

.section-head__kicker {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
}

.section-head p {
  color: var(--color-on-surface-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   課題提起セクション
   ========================================================================== */

.problem {
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  margin: 0 var(--space-lg);
  padding: var(--space-2xl) var(--space-lg);
}

.problem .container {
  max-width: 1080px;
}

.chat-bubbles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.chat-bubble {
  background: var(--color-surface);
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-card);
  font-weight: 700;
  max-width: 260px;
}

.problem__arrow {
  text-align: center;
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.problem__resolve {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  max-width: 560px;
  margin: 0 auto;
}

.problem__resolve strong {
  color: var(--color-primary);
}

/* ==========================================================================
   機能紹介カード
   ========================================================================== */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-on-surface-muted);
  margin-bottom: 0;
}

.feature-card--family .feature-card__icon { background: var(--color-primary-container); color: var(--color-on-primary-container); }
.feature-card--child .feature-card__icon { background: color-mix(in srgb, var(--block-blue) 24%, var(--color-surface)); color: var(--block-blue); }
.feature-card--belongings .feature-card__icon { background: color-mix(in srgb, var(--block-green) 24%, var(--color-surface)); color: var(--block-green); }
.feature-card--wishlist .feature-card__icon { background: color-mix(in srgb, var(--color-accent) 30%, var(--color-surface)); color: var(--color-on-accent); }

/* --- 欲しいものリストの状態表現(色+アイコン+文字) --- */
.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
}

.status-chip--want { background: color-mix(in srgb, var(--color-want) 26%, var(--color-surface)); color: var(--color-on-surface); }
.status-chip--planned { background: color-mix(in srgb, var(--color-planned) 22%, var(--color-surface)); color: var(--color-on-surface); }
.status-chip--bought { background: color-mix(in srgb, var(--color-bought) 22%, var(--color-surface)); color: var(--color-on-surface); }

.status-chip .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-chip--want .dot { background: var(--color-want); }
.status-chip--planned .dot { background: var(--color-planned); }
.status-chip--bought .dot { background: var(--color-bought); }

/* ==========================================================================
   おすすめの家族セクション
   ========================================================================== */

.audience {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-lg);
  margin: 0 var(--space-lg);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
}

.audience h2 {
  color: var(--color-on-primary);
}

.audience-list {
  list-style: none;
  padding: 0;
  margin: var(--space-xl) auto 0;
  max-width: 720px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.audience-list li {
  background: color-mix(in srgb, var(--color-on-primary) 14%, transparent);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  font-weight: 700;
}

/* ==========================================================================
   差別化(育児記録アプリではありません)
   ========================================================================== */

.disclaimer {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xl);
  border: 2px dashed var(--color-outline);
  border-radius: var(--radius-lg);
}

.disclaimer strong {
  color: var(--color-primary);
}

/* ==========================================================================
   ダウンロードCTA
   ========================================================================== */

.cta-download {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-xl);
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
}

.cta-download .section-head__kicker {
  margin-bottom: var(--space-sm);
}

.cta-download h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
}

.cta-download p {
  color: var(--color-on-surface-muted);
  margin-bottom: var(--space-xl);
}

.cta-download .store-buttons {
  justify-content: center;
}

/* ==========================================================================
   問い合わせ
   ========================================================================== */

.contact {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  padding: var(--space-xl) 0;
}

.contact p {
  color: var(--color-on-surface-muted);
  margin: var(--space-md) 0 var(--space-xl);
}

.contact__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact__button:hover,
.contact__button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -14px rgba(122, 35, 17, 0.4);
}

/* ==========================================================================
   フッター
   ========================================================================== */

.site-footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-outline);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-2xl);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
}

.site-footer nav {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.site-footer a {
  color: var(--color-on-surface);
  font-weight: 700;
}

.site-footer small {
  color: var(--color-on-surface-muted);
  display: block;
  margin-top: var(--space-sm);
}

/* ==========================================================================
   プライバシーポリシーページ専用
   ========================================================================== */

.policy {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.policy h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  animation: rise-fade 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.policy__updated {
  color: var(--color-on-surface-muted);
  margin-bottom: var(--space-2xl);
}

.policy section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-outline);
}

.policy section:first-of-type {
  border-top: none;
}

.policy h2 {
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.policy h2::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--color-accent);
  display: inline-block;
  transform: rotate(8deg);
}

.policy ul {
  padding-left: 1.4em;
}

.policy li {
  margin-bottom: var(--space-sm);
}

.policy .callout {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-outline);
}

/* ==========================================================================
   レスポンシブ
   ========================================================================== */

@media (max-width: 860px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
    height: 280px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .audience-list {
    grid-template-columns: 1fr;
  }

  .site-nav {
    gap: var(--space-md);
  }
}

@media (max-width: 600px) {
  body {
    font-size: 17px;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .problem,
  .audience {
    margin: 0 var(--space-sm);
    padding: var(--space-xl) var(--space-md);
  }

  .chat-bubble {
    max-width: 100%;
  }
}