@layer reset, base, components, utilities;

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    -webkit-text-size-adjust: 100%;
    scrollbar-gutter: stable;
  }

  body {
    margin: 0;
  }

  img,
  picture,
  video,
  svg {
    display: block;
    max-inline-size: 100%;
  }

  img,
  video {
    block-size: auto;
  }

  h1,
  h2,
  h3,
  p,
  ul,
  figure,
  blockquote {
    margin: 0;
  }

  ul {
    padding: 0;
    list-style: none;
  }
}

@layer base {
  :root {
    --bg-canvas: #0c0e13;
    --bg-surface: #141720;
    --bg-elevated: #1b1f2b;
    --border-subtle: #2b3142;
    --text-primary: #efeae1;
    --text-muted: #c2baa9;
    --accent-gold: #e0b462;
    --accent-gold-strong: #f0c97a;
    --accent-ember: #b94e36;
    --focus-ring: #f0c97a;

    --font-serif: "Palatino Linotype", "Book Antiqua", Georgia, serif;
    --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;

    --space-xs: clamp(0.5rem, 0.4rem + 0.4vw, 0.75rem);
    --space-sm: clamp(0.875rem, 0.75rem + 0.5vw, 1.25rem);
    --space-md: clamp(1.25rem, 1rem + 1.2vw, 2.25rem);
    --space-lg: clamp(2.25rem, 1.6rem + 3vw, 4.5rem);
    --container-max: 74rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
  }

  body {
    min-block-size: 100dvh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-canvas);
    background-image:
      radial-gradient(ellipse 80% 50% at 50% -10%, rgba(185, 78, 54, 0.16), transparent),
      radial-gradient(ellipse 60% 40% at 85% 20%, rgba(224, 180, 98, 0.08), transparent);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    text-align: start;
  }

  h1,
  h2,
  h3 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.15;
    text-wrap: balance;
    color: var(--text-primary);
  }

  h1 {
    font-size: clamp(2.1rem, 1.35rem + 2.6vw, 3.6rem);
    letter-spacing: -0.015em;
  }

  h2 {
    font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.35rem);
  }

  h3 {
    font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  }

  p {
    max-inline-size: 65ch;
    text-wrap: pretty;
  }

  figcaption {
    text-wrap: balance;
  }

  a {
    color: var(--accent-gold);
    text-underline-offset: 0.2em;
    overflow-wrap: break-word;
  }

  :where(a:any-link, button, summary):focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 3px;
    border-radius: 0.25rem;
  }
}

@layer components {
  .container {
    inline-size: min(100% - 2rem, var(--container-max));
    margin-inline: auto;
  }

  .skip-link:focus-visible {
    position: fixed;
    inset-block-start: 0.75rem;
    inset-inline-start: 0.75rem;
    z-index: 100;
    padding: 0.75rem 1.15rem;
    background: var(--accent-gold);
    color: #0c0e13;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-sm);
  }

  .site-header {
    border-block-end: 1px solid var(--border-subtle);
    background-color: rgba(12, 14, 19, 0.92);
    backdrop-filter: blur(8px);
    position: sticky;
    inset-block-start: 0;
    z-index: 20;
  }

  .header-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-block: 0.85rem;
  }

  .brand {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    text-decoration: none;
    color: var(--text-primary);
    min-block-size: 44px;
    justify-content: center;
  }

  .brand-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .brand-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .header-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    min-inline-size: 0;
  }

  .nav-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem 1rem;
  }

  .nav-list a {
    display: inline-flex;
    align-items: center;
    min-block-size: 44px;
    padding-inline: 0.35rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    border-block-end: 2px solid transparent;
  }

  .nav-list a:hover {
    color: var(--accent-gold-strong);
    border-block-end-color: var(--accent-gold-strong);
  }

  .lang-switch {
    display: inline-flex;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-surface);
  }

  .lang-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    min-inline-size: 44px;
    min-block-size: 44px;
    padding-inline: 0.75rem;
    cursor: pointer;
  }

  .lang-btn[aria-pressed="true"] {
    background: var(--accent-gold);
    color: #0c0e13;
  }

  main {
    flex: 1 0 auto;
  }

  .section {
    padding-block: var(--space-lg);
    border-block-end: 1px solid var(--border-subtle);
  }

  .eyebrow {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-block-end: 0.65rem;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
    gap: var(--space-lg);
    align-items: center;
  }

  @media (max-width: 54rem) {
    .hero-grid {
      grid-template-columns: minmax(0, 1fr);
    }
  }

  .hero-copy {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    min-inline-size: 0;
  }

  .hero-lead {
    font-size: clamp(1.05rem, 0.95rem + 0.45vw, 1.25rem);
    color: var(--text-muted);
  }

  .cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-block-start: 0.5rem;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-block-size: 46px;
    padding: 0.7rem 1.35rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border: 1px solid transparent;
  }

  .btn-primary {
    background-color: var(--accent-gold);
    color: #0c0e13;
  }

  .btn-primary:hover {
    background-color: var(--accent-gold-strong);
  }

  .btn-secondary {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-subtle);
  }

  .btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold-strong);
  }

  .hero-media-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    max-inline-size: 24rem;
    margin-inline: auto;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  }

  .cover-frame {
    border-radius: var(--radius-sm);
    overflow: clip;
    background: #101218;
  }

  .hero-caption {
    margin-block-start: 0.75rem;
    font-size: 0.88rem;
    color: var(--text-muted);
  }

  .section-head {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-block-end: var(--space-md);
  }

  .section-lead {
    color: var(--text-muted);
  }

  .media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(22rem, 100%), 1fr));
    gap: var(--space-md);
  }

  .video-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-inline-size: 0;
  }

  .video-player {
    inline-size: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    background-color: #08090c;
  }

  .transcript-box {
    border-block-start: 1px solid var(--border-subtle);
    padding-block-start: 0.65rem;
    font-size: 0.92rem;
    color: var(--text-muted);
  }

  .transcript-box summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--accent-gold);
    min-block-size: 44px;
    display: flex;
    align-items: center;
  }

  .transcript-body {
    padding-block-start: 0.5rem;
  }

  .books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr));
    gap: var(--space-md);
  }

  .book-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    grid-row: span 4;
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    grid-template-rows: subgrid;
    gap: 0.85rem;
    min-inline-size: 0;
  }

  .book-cover-wrap {
    aspect-ratio: 5 / 8;
    border-radius: var(--radius-sm);
    overflow: clip;
    background: #101218;
  }

  .book-cover-wrap img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
  }

  .book-meta {
    font-size: 0.85rem;
    color: var(--accent-gold);
    font-weight: 600;
    margin-block-start: 0.25rem;
  }

  .book-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
  }

  .book-footer {
    border-block-start: 1px solid var(--border-subtle);
    padding-block-start: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
  }

  .badge {
    display: inline-block;
    padding: 0.22rem 0.6rem;
    border-radius: 999px;
    background: rgba(224, 180, 98, 0.14);
    border: 1px solid rgba(224, 180, 98, 0.4);
    color: var(--accent-gold-strong);
    font-size: 0.78rem;
    font-weight: 600;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(13rem, 100%), 1fr));
    gap: var(--space-sm);
    margin-block-start: var(--space-md);
  }

  .stat-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
  }

  .stat-val {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem);
    font-weight: 700;
    color: var(--accent-gold-strong);
  }

  .stat-label {
    font-size: 0.88rem;
    color: var(--text-muted);
  }

  .synergy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr));
    gap: var(--space-md);
  }

  .synergy-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
  }

  .site-footer {
    margin-block-start: auto;
    padding-block: var(--space-md);
    background: #090b0f;
    color: var(--text-muted);
    font-size: 0.9rem;
  }

  .footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
  }

  .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
}

@layer utilities {
  .visually-hidden:where(:not(:focus-within, :active)) {
    position: absolute !important;
    clip-path: inset(50%) !important;
    overflow: hidden !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    border: 0 !important;
    white-space: nowrap !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .btn,
  .nav-list a {
    transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
  }
}