/**
 * Design tokens — semantic names stay stable; theme blocks swap values.
 * Set data-theme on <html> to switch themes (default: github).
 */

/* ── Shared structural tokens (theme-independent) ── */
:root {
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-family-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --shadow-sm: 0 1px 0 rgba(31, 35, 40, 0.04);
  --shadow-md: 0 3px 6px rgba(140, 149, 159, 0.15);
  --shadow-lg: 0 8px 24px rgba(140, 149, 159, 0.2);

  --focus-ring: 0 0 0 3px var(--color-accent-muted);

  --control-height: 2rem;
  --control-height-lg: 2.5rem;
  --control-padding-x: 0.75rem;
  --font-size-body: 0.875rem;
  --font-size-small: 0.8125rem;
  --font-size-h2: 1.5rem;
}

/* ── GitHub Light (default) ── */
:root,
[data-theme="github"] {
  /* Canvas */
  --color-canvas-default: #ffffff;
  --color-canvas-subtle: #f6f8fa;
  --color-canvas-inset: #f6f8fa;
  --color-canvas-overlay: #ffffff;

  /* Foreground */
  --color-fg-default: #1f2328;
  --color-fg-muted: #656d76;
  --color-fg-subtle: #6e7781;
  --color-fg-on-emphasis: #ffffff;

  /* Borders */
  --color-border-default: #d0d7de;
  --color-border-muted: #d8dee4;
  --color-border-emphasis: #818b98;

  /* Accent (links, focus) */
  --color-accent-fg: #0969da;
  --color-accent-emphasis: #0969da;
  --color-accent-emphasis-hover: #0860ca;
  --color-accent-muted: rgba(9, 105, 218, 0.4);

  /* Primary actions (GitHub green buttons) */
  --color-btn-primary-bg: #1f883d;
  --color-btn-primary-hover: #1a7f37;
  --color-btn-primary-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);

  /* Secondary / neutral buttons */
  --color-btn-neutral-bg: #f6f8fa;
  --color-btn-neutral-hover: #eef1f4;
  --color-btn-neutral-border: #d0d7de;

  /* Semantic */
  --color-success-fg: #1a7f37;
  --color-success-bg: #dafbe1;
  --color-success-border: #4ac26b;
  --color-danger-fg: #d1242f;
  --color-danger-bg: #ffebe9;
  --color-danger-border: #ff8182;
  --color-warning-fg: #9a6700;
  --color-warning-bg: #fff8c5;
  --color-warning-border: #d4a72c;
  --color-info-fg: #0969da;
  --color-info-bg: #ddf4ff;
  --color-info-border: #54aeff;

  /* Code blocks */
  --color-code-bg: #0d1117;
  --color-code-fg: #c9d1d9;
  --color-code-comment: #8b949e;
  --color-code-keyword: #ff7b72;
  --color-code-string: #a5d6ff;
  --color-code-function: #d2a8ff;
  --color-code-type: #79c0ff;

  /* Badges */
  --color-badge-apk-bg: #ccfbf1;
  --color-badge-apk-fg: #0f766e;
  --color-badge-apk-border: #5eead4;
  --color-badge-firmware-bg: #ffedd5;
  --color-badge-firmware-fg: #9a3412;
  --color-badge-firmware-border: #fdba74;

  /* Legacy aliases (used in existing templates) */
  --color-bg: var(--color-canvas-default);
  --color-text: var(--color-fg-default);
  --color-text-secondary: var(--color-fg-muted);
  --color-border: var(--color-border-default);
  --color-primary: var(--color-accent-emphasis);
  --color-primary-hover: var(--color-accent-emphasis-hover);
  --color-secondary: var(--color-canvas-subtle);
  --color-accent: var(--color-accent-emphasis);
  --font-mono: var(--font-family-mono);

  /* Bootstrap bridge */
  --bs-body-bg: var(--color-canvas-default);
  --bs-body-color: var(--color-fg-default);
  --bs-border-color: var(--color-border-default);
  --bs-link-color: var(--color-accent-fg);
  --bs-link-hover-color: var(--color-accent-emphasis-hover);
  --bs-primary: var(--color-btn-primary-bg);
  --bs-primary-rgb: 31, 136, 61;
  --bs-secondary: var(--color-canvas-subtle);
  --bs-secondary-color: var(--color-fg-muted);
  --bs-success: var(--color-success-fg);
  --bs-danger: var(--color-danger-fg);
  --bs-warning: var(--color-warning-fg);
  --bs-info: var(--color-info-fg);
  --bs-font-sans-serif: var(--font-family-base);
  --bs-border-radius: var(--radius-sm);
  --bs-border-radius-sm: var(--radius-sm);
  --bs-border-radius-lg: var(--radius-md);
}

/* ── GitHub Dark (future-ready) ── */
[data-theme="github-dark"] {
  --color-canvas-default: #0d1117;
  --color-canvas-subtle: #161b22;
  --color-canvas-inset: #010409;
  --color-canvas-overlay: #161b22;

  --color-fg-default: #e6edf3;
  --color-fg-muted: #8b949e;
  --color-fg-subtle: #6e7681;
  --color-fg-on-emphasis: #ffffff;

  --color-border-default: #30363d;
  --color-border-muted: #21262d;
  --color-border-emphasis: #6e7681;

  --color-accent-fg: #4493f8;
  --color-accent-emphasis: #4493f8;
  --color-accent-emphasis-hover: #58a6ff;
  --color-accent-muted: rgba(56, 139, 253, 0.4);

  --color-btn-primary-bg: #238636;
  --color-btn-primary-hover: #2ea043;
  --color-btn-primary-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);

  --color-btn-neutral-bg: #21262d;
  --color-btn-neutral-hover: #30363d;
  --color-btn-neutral-border: #30363d;

  --color-success-fg: #3fb950;
  --color-success-bg: rgba(46, 160, 67, 0.15);
  --color-success-border: rgba(46, 160, 67, 0.4);
  --color-danger-fg: #f85149;
  --color-danger-bg: rgba(248, 81, 73, 0.15);
  --color-danger-border: rgba(248, 81, 73, 0.4);
  --color-warning-fg: #d29922;
  --color-warning-bg: rgba(187, 128, 9, 0.15);
  --color-warning-border: rgba(187, 128, 9, 0.4);
  --color-info-fg: #58a6ff;
  --color-info-bg: rgba(56, 139, 253, 0.15);
  --color-info-border: rgba(56, 139, 253, 0.4);

  --color-code-bg: #010409;
  --color-code-fg: #e6edf3;
  --color-code-comment: #8b949e;
  --color-code-keyword: #ff7b72;
  --color-code-string: #a5d6ff;
  --color-code-function: #d2a8ff;
  --color-code-type: #79c0ff;

  --color-badge-apk-bg: rgba(63, 185, 80, 0.15);
  --color-badge-apk-fg: #3fb950;
  --color-badge-apk-border: rgba(63, 185, 80, 0.4);
  --color-badge-firmware-bg: rgba(210, 153, 34, 0.15);
  --color-badge-firmware-fg: #d29922;
  --color-badge-firmware-border: rgba(210, 153, 34, 0.4);

  --color-bg: var(--color-canvas-default);
  --color-text: var(--color-fg-default);
  --color-text-secondary: var(--color-fg-muted);
  --color-border: var(--color-border-default);
  --color-primary: var(--color-accent-emphasis);
  --color-primary-hover: var(--color-accent-emphasis-hover);
  --color-secondary: var(--color-canvas-subtle);
  --color-accent: var(--color-accent-emphasis);

  --bs-body-bg: var(--color-canvas-default);
  --bs-body-color: var(--color-fg-default);
  --bs-border-color: var(--color-border-default);
  --bs-link-color: var(--color-accent-fg);
  --bs-link-hover-color: var(--color-accent-emphasis-hover);
  --bs-primary: var(--color-btn-primary-bg);
  --bs-primary-rgb: 35, 134, 54;
  --bs-secondary: var(--color-canvas-subtle);
  --bs-secondary-color: var(--color-fg-muted);
  --bs-success: var(--color-success-fg);
  --bs-danger: var(--color-danger-fg);
  --bs-warning: var(--color-warning-fg);
  --bs-info: var(--color-info-fg);

  --shadow-sm: 0 1px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}
