/* ==========================================
   Misora Design System - Shared Styles
   ========================================== */

/* ==========================================
   1. CSS Variables - Light Mode
   ========================================== */
:root {
  /* ブランドカラー */
  --color-primary: #43C6FA;
  --color-primary-hover: #2DB5EA;
  --color-primary-light: #E8F7FE;
  --color-primary-dark: #1A9FD9;
  --color-accent: #DA3241;
  --color-accent-hover: #C12030;
  --color-accent-light: #FDEAEC;
  --color-accent-dark: #A8232F;

  /* ベースカラー */
  --color-background: #FFFFFF;
  --color-background-alt: #F8F9FA;
  --color-surface: #FFFFFF;

  /* テキストカラー */
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;
  --color-text-inverse: #FFFFFF;

  /* ボーダー・区切り線 */
  --color-border: #E0E0E0;
  --color-border-light: #F0F0F0;

  /* グレースケール */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* ステータスカラー */
  --color-success: #28A745;
  --color-success-light: #E6F4EA;
  --color-success-dark: #1E7E34;
  --color-warning: #FFC107;
  --color-warning-light: #FFF8E1;
  --color-warning-dark: #D39E00;
  --color-error: #DA3241;
  --color-error-light: #FDEAEC;
  --color-error-dark: #A8232F;
  --color-info: #43C6FA;
  --color-info-light: #E8F7FE;
  --color-info-dark: #1A9FD9;

  /* 追加セマンティックカラー */
  --color-purple: #8B5CF6;
  --color-purple-light: #EDE9FE;
  --color-purple-dark: #6D28D9;
  --color-pink: #EC4899;
  --color-pink-light: #FCE7F3;
  --color-pink-dark: #BE185D;
  --color-orange: #F97316;
  --color-orange-light: #FFF7ED;
  --color-orange-dark: #C2410C;
  --color-teal: #14B8A6;
  --color-teal-light: #CCFBF1;
  --color-teal-dark: #0D9488;
  --color-indigo: #6366F1;
  --color-indigo-light: #E0E7FF;
  --color-indigo-dark: #4338CA;
  --color-cyan: #06B6D4;
  --color-cyan-light: #CFFAFE;
  --color-cyan-dark: #0891B2;

  /* シャドウ */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* フォント */
  --font-family-ja: "BIZ UDPGothic", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  --font-family-en: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", sans-serif;

  /* フォントサイズ */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* 行間 */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* フォントウェイト */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* スペーシング */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* トランジション */
  --transition-fast: 0.15s;
  --transition-base: 0.2s;
  --transition-slow: 0.3s;
}

/* ==========================================
   2. Light Mode Variables (Explicit)
   ========================================== */
[data-theme="light"] {
  /* ブランドカラー */
  --color-primary: #43C6FA;
  --color-primary-hover: #2DB5EA;
  --color-primary-light: #E8F7FE;
  --color-primary-dark: #1A9FD9;
  --color-accent: #DA3241;
  --color-accent-hover: #C12030;
  --color-accent-light: #FDEAEC;
  --color-accent-dark: #A8232F;

  /* ベースカラー */
  --color-background: #FFFFFF;
  --color-background-alt: #F8F9FA;
  --color-surface: #FFFFFF;

  /* テキストカラー */
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;
  --color-text-inverse: #FFFFFF;

  /* ボーダー・区切り線 */
  --color-border: #E0E0E0;
  --color-border-light: #F0F0F0;

  /* グレースケール */
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* ステータスカラー */
  --color-success: #28A745;
  --color-success-light: #E6F4EA;
  --color-success-dark: #1E7E34;
  --color-warning: #FFC107;
  --color-warning-light: #FFF8E1;
  --color-warning-dark: #D39E00;
  --color-error: #DA3241;
  --color-error-light: #FDEAEC;
  --color-error-dark: #A8232F;
  --color-info: #43C6FA;
  --color-info-light: #E8F7FE;
  --color-info-dark: #1A9FD9;

  /* 追加セマンティックカラー */
  --color-purple: #8B5CF6;
  --color-purple-light: #EDE9FE;
  --color-purple-dark: #6D28D9;
  --color-pink: #EC4899;
  --color-pink-light: #FCE7F3;
  --color-pink-dark: #BE185D;
  --color-orange: #F97316;
  --color-orange-light: #FFF7ED;
  --color-orange-dark: #C2410C;
  --color-teal: #14B8A6;
  --color-teal-light: #CCFBF1;
  --color-teal-dark: #0D9488;
  --color-indigo: #6366F1;
  --color-indigo-light: #E0E7FF;
  --color-indigo-dark: #4338CA;
  --color-cyan: #06B6D4;
  --color-cyan-light: #CFFAFE;
  --color-cyan-dark: #0891B2;

  /* シャドウ */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ==========================================
   3. Dark Mode Variables
   ========================================== */
[data-theme="dark"] {
  /* ブランドカラー */
  --color-primary: #5DD3FF;
  --color-primary-hover: #43C6FA;
  --color-primary-light: #1A3A4A;
  --color-primary-dark: #8DE4FF;
  --color-accent: #FF4757;
  --color-accent-hover: #DA3241;
  --color-accent-light: #4A1A1F;
  --color-accent-dark: #FF6B78;

  /* ベースカラー */
  --color-background: #0F0F0F;
  --color-background-alt: #1A1A1A;
  --color-surface: #1F1F1F;

  /* テキストカラー */
  --color-text-primary: #E8E8E8;
  --color-text-secondary: #B0B0B0;
  --color-text-tertiary: #808080;
  --color-text-inverse: #1A1A1A;

  /* ボーダー・区切り線 */
  --color-border: #333333;
  --color-border-light: #2A2A2A;

  /* グレースケール（ダークモード用） */
  --color-gray-50: #18181B;
  --color-gray-100: #27272A;
  --color-gray-200: #3F3F46;
  --color-gray-300: #52525B;
  --color-gray-400: #71717A;
  --color-gray-500: #A1A1AA;
  --color-gray-600: #D4D4D8;
  --color-gray-700: #E4E4E7;
  --color-gray-800: #F4F4F5;
  --color-gray-900: #FAFAFA;

  /* ステータスカラー */
  --color-success: #34D058;
  --color-success-light: #1A3D24;
  --color-success-dark: #5EE082;
  --color-warning: #FFD93D;
  --color-warning-light: #4A3D1A;
  --color-warning-dark: #FFE566;
  --color-error: #FF4757;
  --color-error-light: #4A1A1F;
  --color-error-dark: #FF6B78;
  --color-info: #5DD3FF;
  --color-info-light: #1A3A4A;
  --color-info-dark: #8DE4FF;

  /* 追加セマンティックカラー */
  --color-purple: #A78BFA;
  --color-purple-light: #2E1F4A;
  --color-purple-dark: #C4B5FD;
  --color-pink: #F472B6;
  --color-pink-light: #4A1A35;
  --color-pink-dark: #F9A8D4;
  --color-orange: #FB923C;
  --color-orange-light: #4A2A1A;
  --color-orange-dark: #FDBA74;
  --color-teal: #2DD4BF;
  --color-teal-light: #1A4A44;
  --color-teal-dark: #5EEAD4;
  --color-indigo: #818CF8;
  --color-indigo-light: #1F2347;
  --color-indigo-dark: #A5B4FC;
  --color-cyan: #22D3EE;
  --color-cyan-light: #1A3F4A;
  --color-cyan-dark: #67E8F9;

  /* シャドウ */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ==========================================
   4. System Preference (Auto Dark Mode)
   ========================================== */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    /* ブランドカラー */
    --color-primary: #5DD3FF;
    --color-primary-hover: #43C6FA;
    --color-primary-light: #1A3A4A;
    --color-primary-dark: #8DE4FF;
    --color-accent: #FF4757;
    --color-accent-hover: #DA3241;
    --color-accent-light: #4A1A1F;
    --color-accent-dark: #FF6B78;

    /* ベースカラー */
    --color-background: #0F0F0F;
    --color-background-alt: #1A1A1A;
    --color-surface: #1F1F1F;

    /* テキストカラー */
    --color-text-primary: #E8E8E8;
    --color-text-secondary: #B0B0B0;
    --color-text-tertiary: #808080;
    --color-text-inverse: #1A1A1A;

    /* ボーダー・区切り線 */
    --color-border: #333333;
    --color-border-light: #2A2A2A;

    /* グレースケール（ダークモード用） */
    --color-gray-50: #18181B;
    --color-gray-100: #27272A;
    --color-gray-200: #3F3F46;
    --color-gray-300: #52525B;
    --color-gray-400: #71717A;
    --color-gray-500: #A1A1AA;
    --color-gray-600: #D4D4D8;
    --color-gray-700: #E4E4E7;
    --color-gray-800: #F4F4F5;
    --color-gray-900: #FAFAFA;

    /* ステータスカラー */
    --color-success: #34D058;
    --color-success-light: #1A3D24;
    --color-success-dark: #5EE082;
    --color-warning: #FFD93D;
    --color-warning-light: #4A3D1A;
    --color-warning-dark: #FFE566;
    --color-error: #FF4757;
    --color-error-light: #4A1A1F;
    --color-error-dark: #FF6B78;
    --color-info: #5DD3FF;
    --color-info-light: #1A3A4A;
    --color-info-dark: #8DE4FF;

    /* 追加セマンティックカラー */
    --color-purple: #A78BFA;
    --color-purple-light: #2E1F4A;
    --color-purple-dark: #C4B5FD;
    --color-pink: #F472B6;
    --color-pink-light: #4A1A35;
    --color-pink-dark: #F9A8D4;
    --color-orange: #FB923C;
    --color-orange-light: #4A2A1A;
    --color-orange-dark: #FDBA74;
    --color-teal: #2DD4BF;
    --color-teal-light: #1A4A44;
    --color-teal-dark: #5EEAD4;
    --color-indigo: #818CF8;
    --color-indigo-light: #1F2347;
    --color-indigo-dark: #A5B4FC;
    --color-cyan: #22D3EE;
    --color-cyan-light: #1A3F4A;
    --color-cyan-dark: #67E8F9;

    /* シャドウ */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
}

/* ==========================================
   5. Reset & Base Styles
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-ja);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  transition: background-color var(--transition-slow) ease, color var(--transition-slow) ease;
}

/* ==========================================
   4. Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}

p {
  margin-bottom: var(--spacing-md);
}

/* ==========================================
   4.5 Links (リンク)
   ========================================== */
/* ナビゲーション・独立リンク（通常の <a> タグ）
   ナビゲーションメニュー、フッター、CTA的なリンクに使用。
   ホバー時に明確なアンダーラインを表示します。 */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base) ease;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 本文内リンク（.text-link クラス）
   段落内の本文リンクに使用。通常時は本文に馴染み、
   ホバー時にアニメーションで下部ボーダーを表示します。 */
.text-link {
  color: var(--color-text-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base) ease;
}

.text-link:hover {
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}

.text-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-bottom-color: var(--color-primary);
}

/* ==========================================
   5. Layout Components
   ========================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-layout {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.content-wrapper {
  display: flex;
  flex: 1;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl) 0;
}

.main-content {
  flex: 1;
  max-width: 900px;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

/* Grid Columns */
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

/* Grid Gap Variations */
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Column Span */
.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-5 { grid-column: span 5; }
.col-span-6 { grid-column: span 6; }
.col-span-7 { grid-column: span 7; }
.col-span-8 { grid-column: span 8; }
.col-span-9 { grid-column: span 9; }
.col-span-10 { grid-column: span 10; }
.col-span-11 { grid-column: span 11; }
.col-span-12 { grid-column: span 12; }
.col-span-full { grid-column: 1 / -1; }

/* Responsive Grid (Mobile First) */
@media (min-width: 640px) {
  .sm\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .sm\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .sm\:col-span-2 { grid-column: span 2; }
  .sm\:col-span-3 { grid-column: span 3; }
  .sm\:col-span-4 { grid-column: span 4; }
}

@media (min-width: 768px) {
  .md\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
  .md\:col-span-2 { grid-column: span 2; }
  .md\:col-span-3 { grid-column: span 3; }
  .md\:col-span-4 { grid-column: span 4; }
  .md\:col-span-6 { grid-column: span 6; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .lg\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
  .lg\:col-span-2 { grid-column: span 2; }
  .lg\:col-span-3 { grid-column: span 3; }
  .lg\:col-span-4 { grid-column: span 4; }
  .lg\:col-span-6 { grid-column: span 6; }
}

/* ==========================================
   6. Header & Navigation
   ========================================== */
.header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo img {
  height: 40px;
  width: auto;
  display: block;
}

.logo-text {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base) ease;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 0.375rem;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-background-alt);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all var(--transition-base) ease;
  font-size: var(--font-size-base);
}

.theme-toggle:hover {
  background-color: var(--color-background-alt);
  border-color: var(--color-primary);
}

/* Mobile Menu Toggle (Hamburger) */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all var(--transition-base) ease;
  font-size: var(--font-size-lg);
  line-height: 1;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-background-alt);
  border-color: var(--color-primary);
}

/* Hamburger Icon */
.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  background-color: currentColor;
  border-radius: 1px;
  transition: transform var(--transition-base) ease, opacity var(--transition-base) ease;
}

/* Hamburger Animation when menu is open */
.mobile-menu-toggle.active .hamburger-icon span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-icon span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-icon span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ==========================================
   7. Sidebar Navigation
   ========================================== */
.sidebar {
  width: 250px;
  position: sticky;
  top: 80px;
  height: fit-content;
  padding: var(--spacing-lg);
  background-color: var(--color-surface);
  border-radius: 0.5rem;
  border: 1px solid var(--color-border-light);
}

.sidebar h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: var(--spacing-sm);
}

.sidebar-nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  display: block;
  padding: var(--spacing-sm);
  border-radius: 0.25rem;
  transition: all var(--transition-base) ease;
  font-size: var(--font-size-sm);
}

.sidebar-nav a:hover {
  color: var(--color-primary);
  background-color: var(--color-background-alt);
  padding-left: var(--spacing-md);
}

/* ==========================================
   8. Section & Cards
   ========================================== */
.section {
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-3xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-primary);
}

/* Hero Logo */
.hero-logo {
  width: 120px;
  height: auto;
  margin: 0 auto var(--spacing-xl);
  display: block;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: 0.5rem;
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-slow) ease, transform var(--transition-slow) ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* ==========================================
   9. Code Blocks
   ========================================== */
.code-block-wrapper {
  position: relative;
  margin: var(--spacing-lg) 0;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-background-alt);
  padding: var(--spacing-sm) var(--spacing-md);
  border-top-left-radius: 0.375rem;
  border-top-right-radius: 0.375rem;
  border: 1px solid var(--color-border);
  border-bottom: none;
}

.code-block-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.copy-btn {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base) ease;
}

.copy-btn:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.copy-btn.copied {
  background-color: var(--color-success);
}

pre {
  background-color: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 0.375rem;
  border-bottom-right-radius: 0.375rem;
  padding: var(--spacing-lg);
  overflow-x: auto;
  font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  margin: 0;
}

code {
  font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
  background-color: var(--color-background-alt);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  font-size: 0.9em;
}

pre code {
  background: none;
  padding: 0;
}

/* ==========================================
   10. Demo Component Containers
   ========================================== */
.demo-container {
  background-color: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: var(--spacing-2xl);
  margin: var(--spacing-lg) 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.demo-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ==========================================
   11. Buttons
   ========================================== */
.btn {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all var(--transition-base) ease;
  border: none;
  font-family: var(--font-family-ja);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-secondary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-success:hover {
  background-color: var(--color-success-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-warning {
  background-color: var(--color-warning);
  color: #333333;
  box-shadow: var(--shadow-sm);
}

.btn-warning:hover {
  background-color: var(--color-warning-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
  background-color: var(--color-error-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-info {
  background-color: var(--color-info);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-info:hover {
  background-color: var(--color-info-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  box-shadow: none;
}

.btn-ghost:hover {
  background-color: var(--color-gray-100);
}

/* Button Sizes */
.btn-xsmall {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* Note: Default .btn is medium size */

/* ==========================================
   12. Form Elements
   ========================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  transition: border-color var(--transition-base) ease, box-shadow var(--transition-base) ease;
  font-family: var(--font-family-ja);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(67, 198, 250, 0.1);
}

/* ==========================================
   13. Table
   ========================================== */
.table-wrapper {
  margin: var(--spacing-lg) 0;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background-color: var(--color-surface);
  /* border-radiusとoverflow:hiddenはセルに適用するため削除 */
}

/* テーブルの角を丸めるためのスタイル */
table thead tr:first-child th:first-child {
  border-top-left-radius: 0.5rem;
}
table thead tr:first-child th:last-child {
  border-top-right-radius: 0.5rem;
}
table tbody tr:last-child td:first-child {
  border-bottom-left-radius: 0.5rem;
}
table tbody tr:last-child td:last-child {
  border-bottom-right-radius: 0.5rem;
}

thead {
  background-color: var(--color-background-alt);
}

th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  border-bottom: 2px solid var(--color-border);
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--color-background-alt);
}

/* Table Compact - 小さいセル幅（多数のレコード向け） */
.table-compact th,
.table-compact td {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* Table with Fixed Header - ヘッダー固定 */
.table-fixed-header {
  max-height: 400px;
  overflow-y: auto;
  /* スマホ対応 */
  -webkit-overflow-scrolling: touch;
}

/* th要素にstickyを設定 */
.table-fixed-header thead th {
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-background-alt);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Table with Horizontal Scroll - 横スクロール */
.table-scroll {
  overflow-x: auto;
  /* スマホ対応 */
  -webkit-overflow-scrolling: touch;
}

.table-scroll table {
  width: max-content; /* コンテンツに応じて幅を決定 */
}

/* ==========================================
   14. Modal
   ========================================== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background-color: var(--color-surface);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-base) ease;
}

.modal-close:hover {
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* ==========================================
   14.5 Side Panel
   ========================================== */
.sidepanel-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 1000;
}

.sidepanel-overlay.active {
  display: block;
}

.sidepanel {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 400px;
  max-width: 85vw;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform var(--transition-slow) ease;
  z-index: 1001;
  display: flex;
  flex-direction: column;
}

.sidepanel.sidepanel-right {
  right: 0;
}

.sidepanel.sidepanel-left {
  left: 0;
  transform: translateX(-100%);
}

.sidepanel.active {
  transform: translateX(0);
}

.sidepanel-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidepanel-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin: 0;
}

.sidepanel-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-base) ease;
}

.sidepanel-close:hover {
  color: var(--color-text-primary);
}

.sidepanel-body {
  padding: var(--spacing-xl);
  flex: 1;
  overflow-y: auto;
}

.sidepanel-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* ==========================================
   15. Color Swatches
   ========================================== */
.color-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.color-swatch {
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.color-preview {
  height: 100px;
  width: 100%;
}

.color-info {
  padding: var(--spacing-md);
  background-color: var(--color-surface);
}

.color-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.color-value {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
}

/* ==========================================
   16. Utilities
   ========================================== */
.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ==========================================
   17. Responsive Design
   ========================================== */
@media (max-width: 1024px) {
  .content-wrapper {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: static;
  }

  .main-content {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  /* Mobile Header */
  .header-container {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Mobile Navigation */
  .header nav {
    display: none;
    width: 100%;
    order: 3;
  }

  .header nav.active {
    display: block;
  }

  .nav-menu {
    flex-direction: column;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    margin-top: var(--spacing-sm);
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    text-align: center;
    padding: var(--spacing-md);
  }

  .nav-menu .theme-toggle {
    width: 100%;
    margin-top: var(--spacing-sm);
  }

  /* Logo adjustment for mobile */
  .logo {
    flex: 1;
  }

  .logo-text {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .logo-text span {
    font-size: var(--font-size-sm);
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  .demo-container {
    padding: var(--spacing-lg);
  }

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

/* Extra small screens */
@media (max-width: 480px) {
  .logo img {
    height: 32px;
  }

  .logo-text span {
    font-size: var(--font-size-xs);
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
}

/* ==========================================
   18. Datepicker & Month Picker
   ========================================== */

/* Input Field with Picker */
.picker-input-wrapper {
  position: relative;
  width: 100%;
}

input[type="text"].datepicker-input,
input[type="text"].monthpicker-input {
  width: 100%;
  padding: var(--spacing-md);
  padding-right: calc(var(--spacing-md) * 3);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  transition: border-color var(--transition-base) ease, box-shadow var(--transition-base) ease;
  font-family: var(--font-family-ja);
  cursor: pointer;
}

input[type="text"].datepicker-input:focus,
input[type="text"].monthpicker-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(67, 198, 250, 0.1);
}

.picker-icon {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
  font-size: var(--font-size-lg);
}

/* Datepicker Container */
.datepicker-container,
.monthpicker-container {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md);
  z-index: 1000;
  display: none;
  min-width: 320px;
}

/* 上方向に表示する場合（画面下部でスペース不足時） */
.datepicker-container.show-above,
.monthpicker-container.show-above {
  top: auto;
  bottom: calc(100% + 0.5rem);
}

.datepicker-container.active,
.monthpicker-container.active {
  display: block;
}

/* Datepicker Header */
.datepicker-header,
.monthpicker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

.datepicker-nav-btn,
.monthpicker-nav-btn {
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: 0.25rem;
  transition: all var(--transition-base) ease;
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.datepicker-nav-btn:hover,
.monthpicker-nav-btn:hover {
  background-color: var(--color-background-alt);
  color: var(--color-primary);
}

.datepicker-current,
.monthpicker-current {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
}

/* Datepicker Calendar Grid */
.datepicker-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.25rem;
  margin-bottom: var(--spacing-sm);
}

.datepicker-weekday {
  text-align: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  padding: var(--spacing-sm);
}

.datepicker-weekday.sunday {
  color: var(--color-error);
}

.datepicker-weekday.saturday {
  color: var(--color-primary);
}

.datepicker-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.25rem;
}

.datepicker-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--color-text-primary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base) ease;
  position: relative;
}

.datepicker-day:hover {
  background-color: var(--color-background-alt);
  color: var(--color-primary);
}

.datepicker-day.other-month {
  color: var(--color-text-tertiary);
}

.datepicker-day.today {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.datepicker-day.today::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.datepicker-day.selected {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-semibold);
}

.datepicker-day.selected:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

.datepicker-day.sunday {
  color: var(--color-error);
}

.datepicker-day.saturday {
  color: var(--color-primary);
}

.datepicker-day.selected.sunday,
.datepicker-day.selected.saturday {
  color: var(--color-text-inverse);
}

.datepicker-day:disabled {
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  opacity: 0.5;
}

.datepicker-day:disabled:hover {
  background: none;
}

/* Month Picker Grid */
.monthpicker-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.monthpicker-month {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border-light);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base) ease;
  text-align: center;
}

.monthpicker-month:hover {
  background-color: var(--color-background-alt);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.monthpicker-month.selected {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-semibold);
}

.monthpicker-month.selected:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.monthpicker-month.current {
  font-weight: var(--font-weight-bold);
  border-color: var(--color-primary);
}

/* Picker Footer */
.picker-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
}

.picker-footer-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-primary);
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base) ease;
}

.picker-footer-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.picker-clear-btn {
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.picker-clear-btn:hover {
  background-color: var(--color-background-alt);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .datepicker-container,
  .monthpicker-container {
    min-width: 280px;
  }
}

/* ==========================================
   19. Accessibility
   ========================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ==========================================
   20. Icons (Misora Icons)
   ========================================== */

/* SVG Icon Base */
.misora-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -0.125em;
}

/* Icon Sizes */
.mi-xs { font-size: 0.75rem; }   /* 12px */
.mi-sm { font-size: 1rem; }       /* 16px */
.mi-md { font-size: 1.5rem; }     /* 24px */
.mi-lg { font-size: 2rem; }       /* 32px */
.mi-xl { font-size: 3rem; }       /* 48px */

/* Icon Colors */
.mi-primary { color: var(--color-primary); }
.mi-accent { color: var(--color-accent); }
.mi-success { color: var(--color-success); }
.mi-warning { color: var(--color-warning); }
.mi-error { color: var(--color-error); }
.mi-info { color: var(--color-info); }

/* Icon Font Base (for legacy systems) */
@font-face {
  font-family: 'misora-icons';
  src: url('icons/font/misora-icons.eot');
  src: url('icons/font/misora-icons.eot?#iefix') format('embedded-opentype'),
       url('icons/font/misora-icons.woff2') format('woff2'),
       url('icons/font/misora-icons.woff') format('woff');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}

[class^="icon-"]:before,
[class*=" icon-"]:before {
  font-family: 'misora-icons' !important;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  speak: never;
}

/* Icon Font Classes */
.icon-antenna:before { content: "\f10f"; }
.icon-arrow-down:before { content: "\f10e"; }
.icon-arrow-left:before { content: "\f10d"; }
.icon-arrow-right:before { content: "\f10c"; }
.icon-arrow-up:before { content: "\f10b"; }
.icon-check:before { content: "\f10a"; }
.icon-close:before { content: "\f109"; }
.icon-menu:before { content: "\f108"; }
.icon-minus:before { content: "\f107"; }
.icon-plus:before { content: "\f106"; }
.icon-search:before { content: "\f105"; }
.icon-signal:before { content: "\f104"; }
.icon-sim-card:before { content: "\f103"; }
.icon-smartphone:before { content: "\f102"; }
.icon-wifi:before { content: "\f101"; }

/* ==========================================
   21. List Component
   ========================================== */

/* List Container */
.action-list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

/* List Variants */
.action-list.list-bordered {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg, 0.5rem);
  overflow: hidden;
}

.action-list.list-divided .list-item {
  border-bottom: 1px solid var(--color-border-light);
}

.action-list.list-divided .list-item:last-child {
  border-bottom: none;
}

/* List Sizes */
.action-list.list-small .list-item {
  padding: var(--spacing-sm) var(--spacing-md);
  gap: var(--spacing-sm);
}

.action-list.list-small .list-item-title {
  font-size: var(--font-size-sm);
}

.action-list.list-small .list-item-description {
  font-size: var(--font-size-xs);
}

.action-list.list-small .list-item-icon {
  font-size: var(--font-size-base);
}

.action-list.list-medium .list-item {
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

.action-list.list-medium .list-item-title {
  font-size: var(--font-size-base);
}

.action-list.list-medium .list-item-description {
  font-size: var(--font-size-sm);
}

.action-list.list-medium .list-item-icon {
  font-size: var(--font-size-lg);
}

.action-list.list-large .list-item {
  padding: var(--spacing-lg) var(--spacing-xl);
  gap: var(--spacing-md);
}

.action-list.list-large .list-item-title {
  font-size: var(--font-size-lg);
}

.action-list.list-large .list-item-description {
  font-size: var(--font-size-base);
}

.action-list.list-large .list-item-icon {
  font-size: var(--font-size-xl);
}

/* List Item */
.list-item {
  display: flex;
  align-items: center;
  background-color: var(--color-surface);
  transition: background-color var(--transition-fast) ease;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

/* List Item States */
.list-item.clickable {
  cursor: pointer;
}

.list-item.clickable:hover {
  background-color: var(--color-background-alt);
}

.list-item.clickable:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.list-item.clickable:active {
  background-color: var(--color-border-light);
}

.list-item.disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.list-item.disabled:hover {
  background-color: var(--color-surface);
}

.list-item.selected {
  background-color: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

.list-item.selected:hover {
  background-color: color-mix(in srgb, var(--color-primary) 15%, transparent);
}

/* List Item Content */
.list-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

.list-item-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: var(--spacing-xs);
}

.list-item-title {
  font-family: var(--font-family-ja);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
}

.list-item-description {
  font-family: var(--font-family-ja);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

.list-item-action {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--color-text-tertiary);
  margin-left: auto;
}

/* Bordered variant item styles */
.action-list.list-bordered .list-item {
  border-bottom: 1px solid var(--color-border-light);
}

.action-list.list-bordered .list-item:last-child {
  border-bottom: none;
}

/* ==========================================
   22. Stepper Component
   ========================================== */

/* Stepper Container */
.stepper {
  width: 100%;
}

.stepper-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Horizontal Orientation */
.stepper.stepper-horizontal .stepper-list {
  flex-direction: row;
  align-items: flex-start;
}

/* Vertical Orientation */
.stepper.stepper-vertical .stepper-list {
  flex-direction: column;
}

/* Step Item */
.stepper-item {
  display: flex;
  position: relative;
}

.stepper.stepper-horizontal .stepper-item {
  flex: 1;
  flex-direction: column;
  align-items: center;
}

.stepper.stepper-vertical .stepper-item {
  flex-direction: row;
  align-items: flex-start;
  padding-bottom: var(--spacing-lg);
}

.stepper.stepper-vertical .stepper-item:last-child {
  padding-bottom: 0;
}

/* Step Button */
.stepper-button {
  display: flex;
  align-items: center;
  background: none;
  border: none;
  padding: 0;
  cursor: default;
  text-align: left;
}

.stepper.stepper-horizontal .stepper-button {
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stepper.stepper-vertical .stepper-button {
  flex-direction: row;
  gap: var(--spacing-md);
}

.stepper.stepper-clickable .stepper-button {
  cursor: pointer;
}

.stepper.stepper-clickable .stepper-button:hover .stepper-indicator {
  transform: scale(1.1);
}

.stepper.stepper-clickable .stepper-button:focus-visible .stepper-indicator {
  box-shadow: 0 0 0 3px rgba(67, 198, 250, 0.3);
}

/* Step Indicator */
.stepper-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-base) ease;
  flex-shrink: 0;
}

/* Size Variations */
.stepper.stepper-small .stepper-indicator {
  width: 1.5rem;
  height: 1.5rem;
  font-size: var(--font-size-xs);
}

.stepper.stepper-medium .stepper-indicator {
  width: 2rem;
  height: 2rem;
  font-size: var(--font-size-sm);
}

.stepper.stepper-large .stepper-indicator {
  width: 2.5rem;
  height: 2.5rem;
  font-size: var(--font-size-base);
}

/* Step Status Colors */
.stepper-item.completed .stepper-indicator {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
}

.stepper-item.current .stepper-indicator {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.stepper-item.upcoming .stepper-indicator {
  background-color: var(--color-border);
  color: var(--color-text-tertiary);
}

/* Check Icon */
.stepper-check-icon {
  width: 60%;
  height: 60%;
  stroke: currentColor;
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Step Content */
.stepper-content {
  display: flex;
  flex-direction: column;
}

.stepper.stepper-horizontal .stepper-content {
  margin-top: var(--spacing-sm);
  align-items: center;
}

/* Step Label */
.stepper-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.stepper.stepper-small .stepper-label {
  font-size: var(--font-size-xs);
}

.stepper.stepper-medium .stepper-label {
  font-size: var(--font-size-sm);
}

.stepper.stepper-large .stepper-label {
  font-size: var(--font-size-base);
}

.stepper-item.upcoming .stepper-label {
  color: var(--color-text-tertiary);
}

/* Step Description */
.stepper-description {
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

.stepper.stepper-small .stepper-description {
  font-size: var(--font-size-xs);
}

.stepper.stepper-medium .stepper-description {
  font-size: var(--font-size-xs);
}

.stepper.stepper-large .stepper-description {
  font-size: var(--font-size-sm);
}

/* Connector Line */
.stepper-connector {
  background-color: var(--color-border);
  transition: background-color var(--transition-base) ease;
}

.stepper.stepper-horizontal .stepper-connector {
  position: absolute;
  top: 1rem;
  left: calc(50% + 1.25rem);
  right: calc(-50% + 1.25rem);
  height: 2px;
}

.stepper.stepper-horizontal.stepper-small .stepper-connector {
  top: 0.75rem;
  left: calc(50% + 1rem);
  right: calc(-50% + 1rem);
}

.stepper.stepper-horizontal.stepper-large .stepper-connector {
  top: 1.25rem;
  left: calc(50% + 1.5rem);
  right: calc(-50% + 1.5rem);
}

.stepper.stepper-vertical .stepper-connector {
  position: absolute;
  left: 1rem;
  top: 2.5rem;
  bottom: 0;
  width: 2px;
}

.stepper.stepper-vertical.stepper-small .stepper-connector {
  left: 0.75rem;
  top: 2rem;
}

.stepper.stepper-vertical.stepper-large .stepper-connector {
  left: 1.25rem;
  top: 3rem;
}

.stepper-item.completed .stepper-connector {
  background-color: var(--color-success);
}

/* ==========================================
   23. Toast Component
   ========================================== */

/* Toast Container */
.toast-container {
  position: fixed;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
  max-width: 100%;
  padding: var(--spacing-md);
}

/* Position Variants */
.toast-container.toast-top-right {
  top: 0;
  right: 0;
}

.toast-container.toast-top-left {
  top: 0;
  left: 0;
}

.toast-container.toast-bottom-right {
  bottom: 0;
  right: 0;
}

.toast-container.toast-bottom-left {
  bottom: 0;
  left: 0;
}

.toast-container.toast-top-center {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.toast-container.toast-bottom-center {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* Individual Toast */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: 0.5rem;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  min-width: 300px;
  max-width: 400px;
  animation: toast-slide-in-right 0.3s ease-out;
  border-left: 4px solid;
}

.toast.toast-exiting {
  animation: toast-slide-out-right 0.3s ease-in forwards;
}

@keyframes toast-slide-in-right {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes toast-slide-out-right {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

/* Type Variants */
.toast.toast-success {
  border-left-color: var(--color-success);
}

.toast.toast-success .toast-icon {
  color: var(--color-success);
}

.toast.toast-error {
  border-left-color: var(--color-error);
}

.toast.toast-error .toast-icon {
  color: var(--color-error);
}

.toast.toast-warning {
  border-left-color: var(--color-warning);
}

.toast.toast-warning .toast-icon {
  color: var(--color-warning);
}

.toast.toast-info {
  border-left-color: var(--color-info);
}

.toast.toast-info .toast-icon {
  color: var(--color-info);
}

/* Toast Icon */
.toast-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
}

.toast-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Toast Content */
.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  word-wrap: break-word;
}

/* Toast Close Button */
.toast-close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: none;
  background: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-radius: 0.25rem;
  transition: all var(--transition-base) ease;
}

.toast-close:hover {
  background-color: var(--color-background-alt);
  color: var(--color-text-primary);
}

.toast-close:focus-visible {
  box-shadow: 0 0 0 2px var(--color-primary);
}

.toast-close svg {
  width: 1rem;
  height: 1rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Left Position Animations */
.toast-container.toast-top-left .toast,
.toast-container.toast-bottom-left .toast {
  animation-name: toast-slide-in-left;
}

.toast-container.toast-top-left .toast.toast-exiting,
.toast-container.toast-bottom-left .toast.toast-exiting {
  animation-name: toast-slide-out-left;
}

@keyframes toast-slide-in-left {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes toast-slide-out-left {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(-100%);
    opacity: 0;
  }
}

/* Center Position Animations */
.toast-container.toast-top-center .toast,
.toast-container.toast-bottom-center .toast {
  animation-name: toast-slide-in-center;
}

.toast-container.toast-top-center .toast.toast-exiting,
.toast-container.toast-bottom-center .toast.toast-exiting {
  animation-name: toast-slide-out-center;
}

@keyframes toast-slide-in-center {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes toast-slide-out-center {
  from {
    transform: translateY(0);
    opacity: 1;
  }
  to {
    transform: translateY(-20px);
    opacity: 0;
  }
}

/* Responsive */
@media (max-width: 480px) {
  .toast-container {
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
  }

  .toast-container.toast-top-center,
  .toast-container.toast-bottom-center {
    transform: none;
  }

  .toast {
    min-width: 0;
    max-width: none;
    width: 100%;
  }
}