/* ─── PROJECTS ─── */

    .projects__grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr));
      gap: var(--space-5);
    }
    .project-card {
      background: var(--color-surface);
      border: 1px solid oklch(from var(--color-text) l c h / 0.08);
      border-radius: var(--radius-xl);
      padding: var(--space-6);
      display: flex; flex-direction: column; gap: var(--space-4);
      box-shadow: var(--shadow-sm);
      transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
      position: relative; overflow: hidden;
      cursor: default;
    }
    .project-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
      border-color: oklch(from var(--color-text) l c h / 0.15);
    }
    .project-card--featured {
      grid-column: span 2;
      background: var(--color-surface);
    }
    @media (max-width: 900px) { .project-card--featured { grid-column: span 1; } }

    .project-card__glow {
      position: absolute; top: 0; right: 0; width: 200px; height: 200px;
      background: radial-gradient(circle, oklch(from var(--color-primary) l c h / 0.06) 0%, transparent 70%);
      pointer-events: none;
    }
    .project-card__header {
      display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3);
    }
    .project-card__icon {
      width: 44px; height: 44px;
      background: var(--color-accent-dim);
      border: 1px solid oklch(from var(--color-primary) l c h / 0.2);
      border-radius: var(--radius-lg);
      display: flex; align-items: center; justify-content: center;
      color: var(--color-primary); flex-shrink: 0;
    }
    .project-card__links {
      display: flex; gap: var(--space-2); flex-shrink: 0;
    }
    .project-card__link {
      width: 32px; height: 32px;
      display: flex; align-items: center; justify-content: center;
      border-radius: var(--radius-md);
      color: var(--color-text-muted);
      background: var(--color-surface-offset);
      border: 1px solid var(--color-border);
      text-decoration: none;
    }
    .project-card__link:hover { color: var(--color-text); background: var(--color-surface-offset-2); }
    .project-card__title {
      font-family: var(--font-mono);
      font-size: var(--text-lg); font-weight: 700;
      letter-spacing: -0.02em; color: var(--color-text);
    }
    .project-card__desc {
      font-size: var(--text-sm); color: var(--color-text-muted);
      line-height: 1.6; flex: 1;
    }
    .project-card__tags {
      display: flex; flex-wrap: wrap; gap: var(--space-2);
    }
    .project-card__tag {
      font-family: var(--font-mono); font-size: 11px; font-weight: 500;
      padding: 2px var(--space-2);
      background: var(--color-surface-offset);
      border: 1px solid var(--color-border);
      color: var(--color-text-muted);
      border-radius: var(--radius-full);
    }
    .project-card__demo-btn {
      display: inline-flex; align-items: center; gap: var(--space-2);
      font-size: var(--text-xs); font-weight: 500;
      color: var(--color-primary);
      background: var(--color-accent-dim);
      border: 1px solid oklch(from var(--color-primary) l c h / 0.2);
      padding: var(--space-2) var(--space-3);
      border-radius: var(--radius-md);
      text-decoration: none; cursor: pointer;
      width: fit-content;
    }
    .project-card__demo-btn:hover {
      background: oklch(from var(--color-primary) l c h / 0.18);
    }

/* ─── DEMO MODAL ─── */

    .demo-overlay {
      position: fixed; inset: 0; z-index: 9000;
      background: oklch(0 0 0 / 0.75);
      backdrop-filter: blur(4px);
      display: none; align-items: center; justify-content: center;
      padding: var(--space-4);
    }
    .demo-overlay.open { display: flex; }
    .demo-modal {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-2xl);
      width: 100%; max-width: 900px;
      max-height: 92dvh;
      display: flex; flex-direction: column;
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }
    .demo-modal__header {
      display: flex; align-items: center; justify-content: space-between;
      padding: var(--space-4) var(--space-6);
      border-bottom: 1px solid var(--color-divider);
      flex-shrink: 0;
    }
    .demo-modal__title {
      font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 600;
      color: var(--color-text);
    }
    .demo-modal__close {
      width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
      border-radius: var(--radius-md); color: var(--color-text-muted);
    }
    .demo-modal__close:hover { background: var(--color-surface-offset); color: var(--color-text); }
    .demo-modal__frame {
      flex: 1; min-height: 0;
    }
    .demo-modal__frame iframe {
      width: 100%; height: 100%; min-height: 560px;
      border: none; display: block;
    }
    .demo-modal__no-iframe {
      padding: var(--space-12) var(--space-8); text-align: center;
      color: var(--color-text-muted);
    }
    .demo-modal__no-iframe a {
      color: var(--color-primary); text-decoration: underline;
    }