/* ============================================================
   GMC 2026 — Base styles & core components
   Ported from: apps/wordpress theme refactor/components/assets/gmc-base.css
   - Showcase-only classes (.showcase-*) dropped (not needed in production).
   - .gmc-canvas-placeholder::after migrated from undefined --cat-primary-rgb
     to color-mix() with the defined --cat-primary.
   ============================================================ */

/* ─── Modern CSS Reset ────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
img, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }
[hidden] { display: none !important; }

body {
  font-family: var(--font-body, 'IBM Plex Sans', system-ui, sans-serif);
  font-size: var(--text-lg, 16px);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ─── Layout Utilities ────────────────────────────────────── */
.gmc-container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--space-xl);
}
.gmc-container--narrow { max-width: 800px; }
.gmc-container--wide   { max-width: 1440px; }

.gmc-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2px;
}

/* ─── Tag Badge ───────────────────────────────────────────── */
.gmc-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  width: fit-content;
  border: 2px solid var(--cat-primary, var(--gmc-text-muted));
  background: rgba(0, 0, 0, 0.92);
  font-family: var(--font-code);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gmc-text);
  border-radius: 0;
  line-height: 1;
}
.gmc-badge::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--cat-primary, var(--gmc-text-muted));
  flex-shrink: 0;
}
.gmc-badge--sm { padding: var(--space-2xs) var(--space-xs); font-size: var(--text-xs); gap: var(--space-2xs); }
.gmc-badge--sm::before { width: 8px; height: 8px; }

/* ─── Buttons ─────────────────────────────────────────────── */
.gmc-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-code);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard),
    color var(--dur-fast) var(--ease-standard);
  line-height: 1;
}
.gmc-btn--primary {
  background: var(--cat-primary, var(--gmc-text));
  border-color: var(--cat-primary, var(--gmc-text));
  color: var(--gmc-bg);
}
.gmc-btn--primary:hover { background: transparent; color: var(--cat-primary, var(--gmc-text)); }
.gmc-btn--secondary {
  background: transparent;
  border-color: var(--cat-primary, var(--gmc-border-strong));
  color: var(--cat-primary, var(--gmc-text));
}
.gmc-btn--secondary:hover { background: var(--cat-primary, var(--gmc-surface)); color: var(--gmc-bg); }
.gmc-btn--ghost {
  background: transparent;
  border-color: var(--gmc-border);
  color: var(--gmc-text-dim);
}
.gmc-btn--ghost:hover { border-color: var(--gmc-border-strong); color: var(--gmc-text); }
.gmc-btn:disabled, .gmc-btn[disabled] { opacity: 0.3; cursor: not-allowed; pointer-events: none; }

/* ─── Card ────────────────────────────────────────────────── */
.gmc-card {
  background: var(--gmc-elevated);
  border: 1px solid var(--gmc-border);
  border-top: 3px solid var(--cat-primary, var(--gmc-border));
  padding: var(--space-lg);
  transition:
    border-color var(--dur-normal) var(--ease-standard),
    background var(--dur-normal) var(--ease-standard);
}
.gmc-card:hover { background: var(--gmc-surface); border-color: var(--gmc-border-strong); }
.gmc-card__meta {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  color: var(--gmc-text-muted);
  letter-spacing: 0.06em;
  margin-block-end: var(--space-sm);
}
.gmc-card__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-block-end: var(--space-sm);
}
.gmc-card__excerpt {
  font-size: var(--text-md);
  color: var(--gmc-text-dim);
  line-height: 1.6;
  margin-block-end: var(--space-lg);
}
.gmc-card__link {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  color: var(--cat-primary, var(--gmc-text-dim));
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--dur-fast) var(--ease-standard);
}
.gmc-card__link:hover { color: var(--gmc-text); }

/* ─── Seed Display ────────────────────────────────────────── */
.gmc-seed {
  font-family: var(--font-code);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.05em;
}

/* ─── Divider ─────────────────────────────────────────────── */
.gmc-divider {
  border: none;
  border-top: 1px solid var(--gmc-border);
  margin-block: var(--space-2xl);
}

/* ─── Canvas placeholder (generative areas / no-JS fallback) ── */
.gmc-canvas-placeholder {
  width: 100%;
  background: linear-gradient(135deg, var(--gmc-elevated), var(--gmc-surface));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code);
  font-size: var(--text-sm);
  color: var(--gmc-text-muted);
  letter-spacing: 0.06em;
  position: relative;
  overflow: hidden;
}
.gmc-canvas-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 60% at 30% 70%,
    color-mix(in srgb, var(--cat-primary, var(--gmc-learn)) 15%, transparent) 0%,
    transparent 70%
  );
}

/* ─── Accessibility ───────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--gmc-text);
  color: var(--gmc-bg);
  font-family: var(--font-code);
  font-size: var(--text-sm);
}
.skip-link:focus { left: var(--space-md); top: var(--space-md); }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--gmc-border-focus);
  outline-offset: 2px;
}

/* ─── Button size variants (03-buttons-badges.html) ──────────────── */
.gmc-btn--sm {
  padding: var(--space-2xs, 4px) var(--space-sm, 12px);
  font-size: var(--text-xs, 10px);
}

.gmc-btn--lg {
  padding: var(--space-md, 16px) var(--space-2xl, 48px);
  font-size: var(--text-md, 14px);
}

/* ─── Badge size variants ─────────────────────────────────────────── */
.gmc-badge--lg {
  padding: var(--space-sm, 12px) var(--space-md, 16px);
  font-size: var(--text-md, 14px);
}
.gmc-badge--lg::before { width: 12px; height: 12px; }

/* ─── Pills — archive filters, pure CSS ──────────────────────────── */
.gmc-pill {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2xs, 4px) var(--space-sm, 12px);
  background: var(--gmc-elevated, #141414);
  border: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  font-family: var(--font-code, monospace);
  font-size: var(--text-xs, 10px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gmc-text-dim, rgba(255,255,255,.6));
  cursor: pointer;
  transition:
    border-color var(--dur-fast, 100ms) var(--ease-standard, ease),
    color var(--dur-fast, 100ms) var(--ease-standard, ease),
    background var(--dur-fast, 100ms) var(--ease-standard, ease);
  text-decoration: none;
  border-radius: 0;
}

.gmc-pill:hover {
  border-color: var(--cat-primary, var(--gmc-border-strong, rgba(255,255,255,.2)));
  color: var(--gmc-text, #fff);
}

.gmc-pill--active {
  background: var(--gmc-surface, #1A1A1A);
  border-color: var(--cat-primary, var(--gmc-border-strong, rgba(255,255,255,.2)));
  color: var(--cat-primary, var(--gmc-text, #fff));
}

/* ─── CTA section ─────────────────────────────────────────────────── */
.gmc-cta {
  background: var(--gmc-elevated, #141414);
  border: 1px solid var(--gmc-border, rgba(255,255,255,.1));
  border-left: 4px solid var(--cat-primary, var(--gmc-border-strong, rgba(255,255,255,.2)));
  padding: var(--space-xl, 32px) var(--space-2xl, 48px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl, 32px);
  flex-wrap: wrap;
}

.gmc-cta__title {
  font-family: var(--font-display, sans-serif);
  font-size: var(--text-2xl, 24px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-block-end: var(--space-xs, 8px);
}

.gmc-cta__subtitle {
  font-size: var(--text-md, 14px);
  color: var(--gmc-text-dim, rgba(255,255,255,.6));
  line-height: 1.6;
}

.gmc-cta__actions {
  display: flex;
  gap: var(--space-sm, 12px);
  flex-shrink: 0;
}

/* ─── Category RGB tokens (for rgba() gradients) ─────────────────── */
[data-category="learn"]         { --cat-primary-rgb: 99, 102, 241;  }
[data-category="tools"]         { --cat-primary-rgb: 34, 211, 238;  }
[data-category="artists"]       { --cat-primary-rgb: 244, 114, 182; }
[data-category="events"]        { --cat-primary-rgb: 167, 139, 250; }
[data-category="opportunities"] { --cat-primary-rgb: 52, 211, 153;  }
[data-category="news"]          { --cat-primary-rgb: 251, 191, 36;  }