/* ===== Custom Properties ===== */
:root {
  /* ブランドカラー */
  --color-primary: #7c3aed;
  --color-primary-light: #a78bfa;
  --color-primary-dark: #5b21b6;
  --color-secondary: #4f46e5;
  --color-accent: #6366f1;

  /* グラデーション */
  --gradient-brand: linear-gradient(135deg, #7c3aed, #4f46e5, #6366f1);
  --gradient-bg: linear-gradient(135deg, #0f0a1a, #1a0e2e 25%, #0e1225 50%, #1a0e2e 75%, #0f0a1a);

  /* テキスト */
  --text-primary: #f1f0f5;
  --text-secondary: #a5a2b5;
  --text-muted: #706d82;
  --text-heading: #ffffff;

  /* グラス効果 */
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-hover: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-hover: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  --glass-blur: 16px;
  --glass-strong-bg: rgba(255, 255, 255, 0.1);
  --glass-strong-border: rgba(255, 255, 255, 0.18);
  --glass-strong-blur: 20px;

  /* リンク */
  --color-link: #a78bfa;
  --color-link-hover: #c4b5fd;

  /* スペーシング */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* 角丸 */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* トランジション */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Inter", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
  line-height: 1.8;
  color: var(--text-primary);
  background: var(--gradient-bg);
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* アンビエントブロブ */
body::before,
body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.35;
}

body::before {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
  top: -100px;
  right: -100px;
  filter: blur(120px);
  animation: float-blob-1 22s ease-in-out infinite;
}

body::after {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #4f46e5 0%, transparent 70%);
  bottom: -80px;
  left: -80px;
  filter: blur(120px);
  animation: float-blob-2 25s ease-in-out infinite;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== Layout ===== */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ===== Header — スティッキー・グラスヘッダー ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 10, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-md) 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-heading);
}

.site-title a {
  color: inherit;
}

.site-title a:hover {
  text-decoration: none;
  color: var(--color-primary-light);
}

/* ===== Main ===== */
main {
  flex: 1;
  padding: var(--space-2xl) 0;
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-2xl);
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-brand);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.75rem;
  animation: fade-in-up 0.6s ease both;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  animation: fade-in-up 0.6s ease 0.15s both;
}

/* ===== App Card — グラスカード ===== */
.app-list {
  display: grid;
  gap: var(--space-lg);
}

.app-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-normal), background var(--transition-normal), border-color
    var(--transition-normal), box-shadow var(--transition-normal);
}

.app-card:hover {
  transform: translateY(-2px);
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.app-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: var(--space-sm);
}

.app-card .tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.app-card p {
  color: var(--text-secondary);
}

.app-card .link {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--color-link);
  transition: color var(--transition-fast), gap var(--transition-normal);
}

.app-card .link:hover {
  color: var(--color-link-hover);
  gap: 0.5rem;
  text-decoration: none;
}

/* ===== App Page ===== */
.app-hero {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-2xl);
}

.app-hero h1 {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-brand);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-sm);
  animation: fade-in-up 0.6s ease both;
}

.app-hero .tagline {
  font-size: 1.05rem;
  color: var(--text-secondary);
  animation: fade-in-up 0.6s ease 0.15s both;
}

/* ===== Section ===== */
.section {
  margin-bottom: var(--space-2xl);
}

.section h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid rgba(124, 58, 237, 0.2);
}

/* ===== Feature List — 個別グラスカード ===== */
.feature-list {
  list-style: none;
  display: grid;
  gap: var(--space-md);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  transition: transform var(--transition-normal), background var(--transition-normal), border-color
    var(--transition-normal);
}

.feature-list li:hover {
  transform: translateX(4px);
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.feature-icon {
  flex-shrink: 0;
  font-size: 1.5rem;
  line-height: 1.6;
}

.feature-text strong {
  display: block;
  color: var(--text-heading);
}

.feature-text span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== Store Buttons ===== */
.store-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  flex-direction: column;
  align-items: center;
  margin: var(--space-xl) 0;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  width: 100%;
  max-width: 280px;
  justify-content: center;
  transition: opacity var(--transition-fast), transform var(--transition-fast), background
    var(--transition-normal);
}

.store-btn:hover {
  text-decoration: none;
  opacity: 0.85;
  transform: translateY(-1px);
}

.store-btn--apple {
  background: var(--glass-strong-bg);
  backdrop-filter: blur(var(--glass-strong-blur));
  -webkit-backdrop-filter: blur(var(--glass-strong-blur));
  border: 1px solid var(--glass-strong-border);
  color: var(--text-heading);
}

.store-btn--google {
  background: var(--gradient-brand);
  color: var(--text-heading);
  border: 1px solid transparent;
}

.store-btn--coming-soon {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  cursor: default;
  pointer-events: none;
}

/* ===== Table (プライバシーページ + アラーム表) ===== */
.privacy-page table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.privacy-page th,
.privacy-page td {
  border-bottom: 1px solid var(--glass-border);
  padding: 0.5rem 0.75rem;
  text-align: left;
  color: var(--text-primary);
}

.privacy-page tr:last-child th,
.privacy-page tr:last-child td {
  border-bottom: none;
}

.privacy-page th {
  background: rgba(124, 58, 237, 0.15);
  font-weight: 600;
  color: var(--text-heading);
}

/* テーブルセレクタ（アラーム表対応） */
table.privacy-page {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

table.privacy-page th,
table.privacy-page td {
  border-bottom: 1px solid var(--glass-border);
  padding: 0.5rem 0.75rem;
  text-align: left;
  color: var(--text-primary);
}

table.privacy-page tr:last-child td {
  border-bottom: none;
}

table.privacy-page th {
  background: rgba(124, 58, 237, 0.15);
  font-weight: 600;
  color: var(--text-heading);
}

/* ===== Privacy Page ===== */
.privacy-page h1 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 0.25rem;
}

.privacy-page .last-updated {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-xl);
}

.privacy-page h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-top: var(--space-xl);
  margin-bottom: 0.75rem;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid rgba(124, 58, 237, 0.2);
}

.privacy-page h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.25rem;
  margin-bottom: var(--space-sm);
}

.privacy-page p,
.privacy-page ul {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.privacy-page p a {
  color: var(--color-link);
}

.privacy-page p a:hover {
  color: var(--color-link-hover);
}

.privacy-page ul {
  padding-left: var(--space-lg);
}

.privacy-page li {
  margin-bottom: 0.25rem;
  color: var(--text-secondary);
}

/* ===== Section リンクリスト（ダークテーマ対応） ===== */
.section ul {
  padding-left: var(--space-lg);
}

.section li {
  margin-bottom: 0.25rem;
  color: var(--text-secondary);
}

/* ===== Footer — グラスフッター ===== */
.site-footer {
  background: rgba(15, 10, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: var(--space-lg) 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-secondary);
}

.site-footer a:hover {
  color: var(--color-link-hover);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-link);
}

.breadcrumb span {
  margin: 0 0.25rem;
}

/* ===== Animations ===== */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-blob-1 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(-40px, 30px) scale(1.1);
  }

  66% {
    transform: translate(20px, -20px) scale(0.95);
  }
}

@keyframes float-blob-2 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(30px, -40px) scale(1.05);
  }

  66% {
    transform: translate(-20px, 25px) scale(0.9);
  }
}

@keyframes glow-pulse {
  0%,
  100% {
    filter: drop-shadow(0 0 8px rgba(124, 58, 237, 0));
  }

  50% {
    filter: drop-shadow(0 0 16px rgba(124, 58, 237, 0.3));
  }
}

/* ===== Responsive — デスクトップ拡張 ===== */
@media (min-width: 768px) {
  html {
    font-size: 16px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.125rem;
  }

  .app-hero h1 {
    font-size: 2.5rem;
  }

  .app-hero .tagline {
    font-size: 1.125rem;
  }

  .app-card h2 {
    font-size: 1.375rem;
  }

  .app-card {
    padding: 1.75rem;
  }

  .section h2 {
    font-size: 1.25rem;
  }

  .privacy-page h1 {
    font-size: 1.75rem;
  }

  .site-footer {
    font-size: 0.85rem;
  }

  .breadcrumb {
    font-size: 0.85rem;
  }

  .store-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .store-btn {
    width: auto;
    max-width: none;
  }

  body::before {
    width: 600px;
    height: 600px;
  }

  body::after {
    width: 500px;
    height: 500px;
  }
}