/* ── About page styles ──────────────────────────
     Tokens: tokens.css · Base: base.css
     ──────────────────────────────────────────── */

  /* Page load fade-in */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .container {
    animation: fadeIn 0.4s ease-out;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px);
  }

  /* Header */
  header {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .logo {
    flex: 1;
    font-family: "Financier Display", Georgia, "Times New Roman", Times, serif;
    font-size: clamp(25px, 1.73vw, 28px);
    font-weight: 340;
    font-style: italic;
    letter-spacing: 0.045em;
  }
  .logo a {
    color: var(--color-text);
    text-decoration: none;
  }
  .logo a:hover { color: var(--color-text); }

  .site-nav {
    display: flex;
    gap: 24px;
    align-items: baseline;
  }
  .site-nav-link {
    font-size: clamp(14px, 1.05vw, 15px);
    font-weight: 400;
    color: var(--color-text-muted);
    text-decoration: none;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
  }
  .site-nav-link:hover {
    color: var(--color-gold);
  }
  .site-nav-link.active {
    color: var(--color-text);
    border-bottom-color: var(--color-gold);
  }

  .header-actions {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
  }

  .theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
    padding: 13px;
    margin: -13px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
  }
  .theme-toggle:hover { color: var(--color-gold); }
  .theme-toggle::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%) scale(0.95);
    background: var(--color-text);
    color: var(--color-bg);
    font-size: 10px;
    font-weight: 400;
    padding: 3px 7px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 10;
  }
  .theme-toggle::before {
    content: '';
    position: absolute;
    top: calc(100% - 1px);
    left: 50%;
    transform: translateX(-50%);
    border: 3px solid transparent;
    border-bottom-color: var(--color-text);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 10;
  }
  @media (hover: hover) {
    .theme-toggle:hover::after {
      opacity: 1;
      transform: translateX(-50%) scale(1);
    }
    .theme-toggle:hover::before {
      opacity: 1;
    }
  }
  .theme-toggle .icon-sun { display: none; }
  .theme-toggle .icon-moon { display: block; }

  [data-theme="dark"] .theme-toggle .icon-sun { display: block; }
  [data-theme="dark"] .theme-toggle .icon-moon { display: none; }
  @media (prefers-color-scheme: dark) {
    html:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
    html:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
  }

  @media (max-width: 767px) {
    header {
      flex-wrap: wrap;
      gap: 12px;
    }
    .logo { flex: 1; }
    .header-actions {
      order: 0;
    }
    .site-nav {
      width: 100%;
      order: 1;
      gap: 16px;
    }
    .site-nav-link {
      font-size: 13px;
    }
  }

  /* ─── About page content ─── */

  .about-content {
    max-width: 680px;
    margin: 0 auto;
    padding: 48px 0 32px;
  }

  /* Page title */
  .about-hero {
    margin-bottom: 40px;
    text-align: center;
  }

  .about-hero-title {
    font-family: "Financier Display", Georgia, "Times New Roman", Times, serif;
    font-size: clamp(28px, 2.5vw, 38px);
    font-weight: 350;
    font-style: italic;
    letter-spacing: 0.03em;
    color: var(--color-text);
    line-height: 1.2;
    margin-bottom: 16px;
  }

  .about-hero-subtitle {
    font-size: clamp(15px, 1.1vw, 17px);
    font-weight: var(--font-weight-body);
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 480px;
    margin: 0 auto;
  }

  /* Divider below hero */
  .about-hero::after {
    content: '';
    display: block;
    width: 60px;
    height: 1px;
    background: var(--color-border);
    margin: 28px auto 0;
  }

  /* Table of contents */
  .about-toc {
    margin-bottom: 48px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }

  .about-toc ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 24px;
    padding: 0;
    margin: 0;
  }

  .about-toc li {
    display: flex;
    align-items: baseline;
    gap: 6px;
  }

  .about-toc-number {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-gold);
    font-variant-numeric: tabular-nums;
  }

  .about-toc a {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
  }
  .about-toc a:hover {
    color: var(--color-gold);
  }

  /* Sections */
  .about-section {
    margin-bottom: 48px;
    scroll-margin-top: 80px;
    position: relative;
  }

  .about-section-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
  }

  .about-section-number {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gold);
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
  }

  .about-section-title {
    font-family: "Financier Display", Georgia, "Times New Roman", Times, serif;
    font-size: clamp(20px, 1.6vw, 24px);
    font-weight: var(--font-weight-heading);
    font-style: normal;
    letter-spacing: 0.045em;
    color: var(--color-text);
  }

  /* Prose */
  .about-prose {
    font-size: clamp(15px, 1.05vw, 17px);
    font-weight: var(--font-weight-body);
    line-height: 1.75;
    color: var(--color-text-secondary);
  }

  .about-prose p {
    margin-bottom: 16px;
  }

  .about-prose p:last-child {
    margin-bottom: 0;
  }

  .about-prose .about-footnote {
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px solid rgba(160, 160, 168, 0.12);
    font-size: clamp(13px, 0.85vw, 14px);
    color: var(--color-text-muted);
    line-height: 1.6;
  }

  .about-prose a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(35, 97, 161, 0.3);
    text-underline-offset: 2px;
    transition: color 0.15s ease, text-decoration-color 0.15s ease;
  }
  .about-prose a:hover {
    color: var(--color-accent-hover);
    text-decoration-color: var(--color-accent-hover);
  }

  /* Page-name links (Albums, Tracks) — editorial style */
  .about-prose a.about-page-link {
    font-family: "Financier Text", Georgia, "Times New Roman", Times, serif;
    font-style: italic;
    font-size: 1.15em;
    letter-spacing: 0.03em;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
  }
  .about-prose a.about-page-link:hover {
    color: var(--color-gold);
    border-bottom-color: var(--color-gold);
  }

  .about-prose strong {
    color: var(--color-text);
    font-weight: 600;
  }

  /* Pull-quote */
  .about-pullquote {
    margin: 32px 0;
    padding: 20px 24px;
    border-left: 3px solid var(--color-gold);
    background: var(--color-bg-hover);
    border-radius: 0 6px 6px 0;
    font-size: clamp(16px, 1.15vw, 18px);
    font-weight: var(--font-weight-body);
    font-style: italic;
    line-height: 1.65;
    color: var(--color-text-secondary);
  }

  /* How-it-works steps */
  .about-steps {
    list-style: none;
    margin: 24px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .about-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px 16px 16px 14px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    border-left: 2px solid var(--color-border);
    transition: border-left-color 0.15s ease, background 0.2s ease;
  }
  .about-step:hover {
    border-left-color: var(--color-gold);
    background: linear-gradient(90deg, var(--color-gradient-start) 0%, transparent 100%);
  }

  .about-step-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-end) 100%);
    color: var(--color-step-number);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
  }

  .about-step-text {
    flex: 1;
  }

  .about-step-label {
    font-weight: 450;
    font-size: clamp(14px, 1vw, 16px);
    color: var(--color-text);
    margin-bottom: 4px;
  }
  .about-step-label.tier-reference { color: #d4a24e; }
  .about-step-label.tier-studio    { color: #a0a0a8; }
  .about-step-label.tier-broadcast { color: #b07a4a; }

  .about-step-desc {
    font-size: clamp(14px, 0.95vw, 15px);
    font-weight: var(--font-weight-body);
    line-height: 1.6;
    color: var(--color-text-muted);
  }

  /* Signal tier icons */
  .award-signals-list {
    gap: 12px;
  }
  .award-signal-icon {
    flex-shrink: 0;
    margin-top: 10px;
    margin-left: 10px;
  }

  /* Contact section */
  .about-contact-links {
    list-style: none;
    margin: 20px 0 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .about-contact-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px 12px 14px;
    border: 1px solid var(--color-border);
    border-left: 2px solid var(--color-border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--color-text);
    transition: border-left-color 0.15s ease, background 0.2s ease;
  }
  .about-contact-link:hover {
    border-left-color: var(--color-gold);
    background: linear-gradient(90deg, var(--color-gradient-start) 0%, transparent 100%);
  }

  .about-contact-icon {
    flex-shrink: 0;
    color: var(--color-gold);
  }

  .about-contact-label {
    font-size: clamp(14px, 1vw, 15px);
    font-weight: 450;
  }

  .about-contact-detail {
    font-size: clamp(13px, 0.9vw, 14px);
    color: var(--color-text-muted);
    margin-left: auto;
  }

  /* Footer */
  footer {
    padding: 32px 0;
    margin-top: 32px;
    border-top: 1px solid var(--color-border);
    text-align: center;
  }

  .footer-info {
    font-size: clamp(13px, 0.87vw, 14px);
    color: var(--color-text-secondary);
    margin-bottom: 8px;
  }
  .footer-info a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.15s ease;
  }
  .footer-info a:hover { color: var(--color-gold); }
  .footer-info a:hover svg { fill: var(--color-gold); }
  .footer-info svg {
    vertical-align: -2px;
    margin-right: 4px;
    fill: var(--color-gold);
    transition: fill 0.15s ease;
  }
  .footer-tagline {
    font-family: "Financier Text", Georgia, "Times New Roman", Times, serif;
    font-style: italic;
    font-size: clamp(13px, 0.87vw, 14px);
    color: var(--color-text-muted);
    letter-spacing: 0.045em;
    font-weight: 380;
    opacity: 0.6;
  }

  /* Scroll-to-top button */
  .scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.85);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, color 0.15s ease, border-color 0.15s ease;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  }
  .scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }
  .scroll-top:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
  }
  .scroll-top:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-focus-shadow);
  }