/* ===== デザイントークン（Airbnbデザインシステム準拠） ===== */
:root {
  /* Colors */
  --color-canvas: #ffffff;
  --color-ink: #222222;
  --color-body: #3f3f3f;
  --color-muted: #6a6a6a;
  --color-muted-soft: #929292;
  --color-primary: #ff385c;
  --color-primary-active: #e00b41;
  --color-primary-disabled: #ffd1da;
  --color-on-primary: #ffffff;
  --color-hairline: #dddddd;
  --color-hairline-soft: #ebebeb;
  --color-surface-soft: #f7f7f7;
  --color-surface-strong: #f2f2f2;
  --color-track: #f2f2f2;          /* 進捗バーの軌道（ダーク時はカードより一段明るく） */
  --color-error: #c13515;

  /* セマンティックカラー（components.css内のハードコード色を変数化） */
  --color-income: #0a7d5c;
  --color-income-bg: #ecfdf5;
  --color-income-border: #a7f3d0;
  --color-expense-bg: #fff1f2;
  --color-expense-border: #fecdd3;
  --color-badge-pro-bg: #fffbeb;
  --color-badge-pro-text: #b45309;
  --color-badge-free-bg: #f7f7f7;
  --color-badge-free-text: #6a6a6a;
  --color-warning: #f59e0b;

  /* Typography */
  --font-family: 'Inter', -apple-system, system-ui, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 20px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-full: 9999px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 64px;

  /* Shadow */
  --shadow-float: rgba(0,0,0,0.02) 0 0 0 1px,
                  rgba(0,0,0,0.04) 0 2px 6px,
                  rgba(0,0,0,0.10) 0 4px 8px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-canvas: #1c1c1e;
    --color-ink: #f5f5f5;
    --color-body: #e0e0e0;
    --color-muted: #a0a0a0;
    --color-muted-soft: #787878;
    --color-surface-soft: #2c2c2e;
    --color-surface-strong: #3a3a3c;
    --color-track: #48484a;
    --color-hairline: #3a3a3c;
    --color-hairline-soft: #2c2c2e;
    --color-primary-disabled: #6b0020;
    --color-income: #34c789;
    --color-income-bg: #0d2d1e;
    --color-income-border: #1a5237;
    --color-expense-bg: #2d1414;
    --color-expense-border: #5c2424;
    --color-error: #ff6b6b;
    --color-badge-pro-bg: #2d2310;
    --color-badge-pro-text: #f59e0b;
    --color-badge-free-bg: #2c2c2e;
    --color-badge-free-text: #a0a0a0;
    --color-warning: #fbbf24;
    --shadow-float: rgba(0,0,0,0.5) 0 0 0 1px, rgba(0,0,0,0.5) 0 2px 6px, rgba(0,0,0,0.5) 0 4px 8px;
  }
}

[data-theme="dark"] {
  --color-canvas: #1c1c1e;
  --color-ink: #f5f5f5;
  --color-body: #e0e0e0;
  --color-muted: #a0a0a0;
  --color-muted-soft: #787878;
  --color-surface-soft: #2c2c2e;
  --color-surface-strong: #3a3a3c;
  --color-track: #48484a;
  --color-hairline: #3a3a3c;
  --color-hairline-soft: #2c2c2e;
  --color-primary-disabled: #6b0020;
  --color-income: #34c789;
  --color-income-bg: #0d2d1e;
  --color-income-border: #1a5237;
  --color-expense-bg: #2d1414;
  --color-expense-border: #5c2424;
  --color-error: #ff6b6b;
  --color-badge-pro-bg: #2d2310;
  --color-badge-pro-text: #f59e0b;
  --color-badge-free-bg: #2c2c2e;
  --color-badge-free-text: #a0a0a0;
  --color-warning: #fbbf24;
  --shadow-float: rgba(0,0,0,0.5) 0 0 0 1px, rgba(0,0,0,0.5) 0 2px 6px, rgba(0,0,0,0.5) 0 4px 8px;
}

[data-theme="light"] {
  --color-canvas: #ffffff;
  --color-ink: #222222;
  --color-body: #3f3f3f;
  --color-muted: #6a6a6a;
  --color-surface-soft: #f7f7f7;
  --color-surface-strong: #f2f2f2;
  --color-track: #f2f2f2;
  --color-hairline: #dddddd;
  --color-hairline-soft: #ebebeb;
  --color-income: #0a7d5c;
  --color-income-bg: #ecfdf5;
  --color-income-border: #a7f3d0;
  --color-expense-bg: #fff1f2;
  --color-expense-border: #fecdd3;
  --color-error: #c13515;
  --color-badge-pro-bg: #fffbeb;
  --color-badge-pro-text: #b45309;
  --color-badge-free-bg: #f7f7f7;
  --color-badge-free-text: #6a6a6a;
  --shadow-float: rgba(0,0,0,0.02) 0 0 0 1px, rgba(0,0,0,0.04) 0 2px 6px, rgba(0,0,0,0.10) 0 4px 8px;
  --color-muted-soft: #929292;
}

/* ===== リセット ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family);
  color: var(--color-ink);
  background-color: var(--color-canvas);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
}

/* モバイルでボタン連打時のダブルタップズームを抑止（ピンチズームは妨げない） */
a, button, input, select, textarea, label {
  touch-action: manipulation;
}

/* ===== モーションの低減 ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ダークモードトグルボタン */
.navbar__theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
  line-height: 1;
}
.navbar__theme-toggle:hover {
  background: var(--color-surface-soft);
}