:root {
      --bg: #07080f;
      --bg-light: #0d0e1a;
      --bg-card: rgba(255,255,255,0.035);
      --accent-blue: #4f8ef7;
      --accent-purple: #a855f7;
      --accent-pink: #ec4899;
      --accent-gold: #c9a84c;
      --text: #eeeef2;
      --text-muted: #8888a8;
      --text-dim: #555570;
      --border: rgba(255,255,255,0.07);
      --border-hover: rgba(168,85,247,0.25);
      --font-display: 'Cormorant Garamond', Georgia, serif;
      --font-body: 'DM Sans', sans-serif;
      --font-mono: 'DM Mono', monospace;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    body {
      font-family: var(--font-body);
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* Ambient background */
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 90% 70% at 5% 15%, rgba(79,142,247,0.07) 0%, transparent 55%),
        radial-gradient(ellipse 70% 60% at 95% 5%, rgba(168,85,247,0.08) 0%, transparent 50%),
        radial-gradient(ellipse 80% 70% at 50% 95%, rgba(236,72,153,0.06) 0%, transparent 55%),
        radial-gradient(ellipse 50% 50% at 75% 55%, rgba(79,142,247,0.04) 0%, transparent 45%);
      pointer-events: none;
      z-index: 0;
      animation: ambientShift 25s ease-in-out infinite alternate;
    }

    @keyframes ambientShift {
      0% { opacity: 0.7; transform: scale(1) rotate(0deg); }
      100% { opacity: 1; transform: scale(1.08) rotate(1deg); }
    }

    /* Noise texture overlay */
    body::after {
      content: '';
      position: fixed;
      inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
      pointer-events: none;
      z-index: 0;
      opacity: 0.4;
    }

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

    .container {
      max-width: 1160px;
      margin: 0 auto;
      padding: 0 32px;
      position: relative;
      z-index: 1;
    }

    /* ── HEADER ── */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: #000000;
      border-bottom: 1px solid var(--border);
    }

    nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
    }

    .logo img {
      height: 80px;
      display: block;
      background: #000;
    }

    .nav-links {
      display: flex;
      gap: 40px;
      font-size: 0.825rem;
      font-weight: 500;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .nav-links a {
      color: var(--text-muted);
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--text); }

    @media (max-width: 768px) { .nav-links { display: none; } }

    /* ── HERO ── */
    .hero {
      padding: 140px 0 100px;
      text-align: center;
      position: relative;
      z-index: 1;
    }

    .hero-eyebrow {
      font-family: var(--font-mono);
      font-size: 0.72rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--accent-blue);
      margin-bottom: 28px;
      opacity: 0;
      animation: fadeUp 0.8s 0.2s forwards;
    }

    .hero h1 {
      font-family: var(--font-display);
      font-size: clamp(3rem, 7vw, 5.5rem);
      font-weight: 700;
      line-height: 1.05;
      letter-spacing: -0.02em;
      margin-bottom: 32px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
      opacity: 0;
      animation: fadeUp 0.9s 0.4s forwards;
    }

    .hero h1 em {
      font-style: italic;
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero h1 .em-pink {
      font-style: italic;
      background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto 52px;
      line-height: 1.75;
      font-weight: 300;
      opacity: 0;
      animation: fadeUp 0.9s 0.6s forwards;
    }

    .hero-buttons {
      display: flex;
      gap: 14px;
      justify-content: center;
      flex-wrap: wrap;
      opacity: 0;
      animation: fadeUp 0.9s 0.8s forwards;
    }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .btn-primary {
      padding: 13px 28px;
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
      color: white;
      border-radius: 6px;
      font-weight: 600;
      font-size: 0.875rem;
      letter-spacing: 0.02em;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(79,142,247,0.28);
    }

    .btn-secondary {
      padding: 13px 28px;
      border: 1px solid rgba(255,255,255,0.1);
      color: var(--text-muted);
      border-radius: 6px;
      font-weight: 500;
      font-size: 0.875rem;
      transition: border-color 0.2s, color 0.2s;
    }
    .btn-secondary:hover {
      border-color: rgba(168,85,247,0.35);
      color: var(--text);
    }

    /* ── SECTIONS ── */
    section {
      padding: 96px 0;
      position: relative;
      z-index: 1;
    }

    .section-tag {
      font-family: var(--font-mono);
      color: var(--accent-blue);
      font-size: 0.7rem;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.18em;
      margin-bottom: 16px;
    }

    .section-header {
      max-width: 660px;
      margin: 0 auto 72px;
      text-align: center;
    }

    h2 {
      font-family: var(--font-display);
      font-size: clamp(2rem, 4.5vw, 3.2rem);
      font-weight: 700;
      line-height: 1.1;
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }

    .section-divider {
      width: 40px;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
      border-radius: 2px;
      margin: 0 auto 28px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.75;
      font-weight: 300;
    }

    /* ── BELIEFS ── */
    .beliefs-grid {
      display: grid;
      gap: 18px;
      max-width: 980px;
      margin: 0 auto;
      grid-template-columns: repeat(2, 1fr);
    }
    @media (max-width: 700px) { .beliefs-grid { grid-template-columns: 1fr; } }

    .belief-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 32px;
      transition: border-color 0.3s, transform 0.3s;
    }
    .belief-card:hover {
      border-color: var(--border-hover);
      transform: translateY(-3px);
    }

    .belief-icon {
      width: 44px; height: 44px;
      background: rgba(79,142,247,0.08);
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 20px;
      font-size: 1.25rem;
    }

    .belief-card h3 {
      font-family: var(--font-display);
      font-size: 1.2rem;
      font-weight: 600;
      margin-bottom: 10px;
    }
    .belief-card p { color: var(--text-muted); font-size: 0.9375rem; line-height: 1.7; }

    /* ── TIERS ── */
    .tiers-list { max-width: 820px; margin: 0 auto; }

    .tier {
      padding: 30px 36px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: 16px;
      transition: border-color 0.3s;
      position: relative;
      overflow: hidden;
    }
    .tier::before {
      content: '';
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 3px;
      background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple));
      border-radius: 2px 0 0 2px;
      opacity: 0;
      transition: opacity 0.3s;
    }
    .tier:hover { border-color: rgba(79,142,247,0.2); }
    .tier:hover::before { opacity: 1; }

    .tier h3 {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .tier-number {
      width: 32px; height: 32px;
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
      color: white;
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      font-size: 0.8rem;
      font-weight: 700;
      font-family: var(--font-mono);
      flex-shrink: 0;
    }

    .tier p { color: var(--text-muted); line-height: 1.7; padding-left: 48px; font-size: 0.9375rem; }

    /* ── WHO ── */
    .who-cards {
      display: grid; gap: 18px;
      max-width: 960px; margin: 0 auto;
      grid-template-columns: repeat(3, 1fr);
    }
    @media (max-width: 768px) { .who-cards { grid-template-columns: 1fr; } }

    .who-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px; padding: 30px;
      transition: border-color 0.3s, transform 0.3s;
    }
    .who-card:hover {
      border-color: rgba(236,72,153,0.2);
      transform: translateY(-3px);
    }
    .who-card h3 {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .who-card p { color: var(--text-muted); font-size: 0.9375rem; line-height: 1.65; }

    /* ── MEDIUM ── */
    .medium-section { background: linear-gradient(180deg, transparent, rgba(168,85,247,0.03), transparent); }

    .medium-grid {
      display: grid; gap: 18px;
      max-width: 1020px; margin: 0 auto;
      grid-template-columns: repeat(2, 1fr);
    }
    @media (max-width: 700px) { .medium-grid { grid-template-columns: 1fr; } }

    .medium-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px; padding: 30px 32px;
      transition: border-color 0.3s, transform 0.3s, background 0.3s;
      display: flex; flex-direction: column; gap: 14px;
    }
    .medium-card:hover {
      border-color: rgba(79,142,247,0.28);
      background: rgba(79,142,247,0.03);
      transform: translateY(-3px);
    }

    .medium-tag {
      display: inline-block; padding: 3px 10px;
      background: rgba(79,142,247,0.08);
      color: var(--accent-blue); border-radius: 4px;
      font-family: var(--font-mono);
      font-size: 0.68rem; font-weight: 500;
      letter-spacing: 0.08em; text-transform: uppercase;
      width: fit-content;
    }

    .medium-card h3 {
      font-family: var(--font-display);
      font-size: 1.05rem; font-weight: 600;
      line-height: 1.35; color: var(--text);
    }
    .medium-card p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.65; flex: 1; }

    .medium-read-link {
      display: inline-flex; align-items: center; gap: 6px;
      color: var(--accent-blue); font-size: 0.825rem; font-weight: 500;
      font-family: var(--font-mono);
      margin-top: 4px; transition: gap 0.2s;
    }
    .medium-read-link:hover { gap: 10px; }

    /* ── BOOK ── */
    .book-section { background: linear-gradient(180deg, transparent, rgba(79,142,247,0.03), transparent); }

    .book-grid {
      display: grid; gap: 64px;
      align-items: center; max-width: 1020px; margin: 0 auto;
    }
    @media (min-width: 900px) { .book-grid { grid-template-columns: 1.3fr 1fr; } }

    .book-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }

    .tag {
      padding: 4px 12px;
      background: rgba(168,85,247,0.08);
      color: var(--accent-purple); border-radius: 5px;
      font-family: var(--font-mono);
      font-size: 0.72rem; font-weight: 500; letter-spacing: 0.04em;
    }

    .book-features { list-style: none; margin: 28px 0; }
    .book-features li {
      padding: 10px 0; padding-left: 24px;
      position: relative; color: var(--text-muted);
      font-size: 0.9375rem; line-height: 1.6;
      border-bottom: 1px solid var(--border);
    }
    .book-features li:last-child { border-bottom: none; }
    .book-features li:before {
      content: "→"; position: absolute; left: 0;
      color: var(--accent-blue); font-weight: 700;
    }

    .book-cover-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px; padding: 44px 32px;
      text-align: center; position: relative; overflow: hidden;
    }
    .book-cover-wrapper::before {
      content: '';
      position: absolute; top: -60px; left: -60px;
      width: 200px; height: 200px;
      background: radial-gradient(circle, rgba(168,85,247,0.12), transparent 70%);
      pointer-events: none;
    }
    .book-cover-wrapper::after {
      content: '';
      position: absolute; bottom: -40px; right: -40px;
      width: 160px; height: 160px;
      background: radial-gradient(circle, rgba(79,142,247,0.1), transparent 70%);
      pointer-events: none;
    }

    .book-cover-wrapper img {
      border-radius: 8px;
      position: relative;
      z-index: 1;
      box-shadow: 0 24px 48px rgba(0,0,0,0.5);
      max-width: 260px;
    }

    .ai-badge {
      display: inline-flex;
      align-items: center;
      position: relative;
      top: -0.6em;
      padding: 1px 4px;
      background: rgba(168,85,247,0.18);
      border: 1px solid rgba(168,85,247,0.3);
      border-radius: 3px;
      font-family: var(--font-mono);
      font-size: 0.5rem;
      font-weight: 600;
      color: var(--accent-purple);
      line-height: 1;
      letter-spacing: 0.05em;
    }

    /* ── ABOUT BOOK ── */
    .about-book-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 52px 56px;
      position: relative;
      overflow: hidden;
      max-width: 800px;
      margin: 0 auto;
    }
    .about-book-card::before {
      content: '';
      position: absolute; top: -80px; left: -80px;
      width: 280px; height: 280px;
      background: radial-gradient(circle, rgba(168,85,247,0.1), transparent 70%);
      pointer-events: none;
    }
    .about-book-card::after {
      content: '';
      position: absolute; bottom: -60px; right: -60px;
      width: 220px; height: 220px;
      background: radial-gradient(circle, rgba(79,142,247,0.08), transparent 70%);
      pointer-events: none;
    }
    .about-book-card p {
      font-size: 1.05rem;
      line-height: 1.85;
      color: var(--text-muted);
      margin-bottom: 24px;
      position: relative;
      z-index: 1;
    }
    .about-book-card p:last-child { margin-bottom: 0; }
    .about-book-card .pullquote {
      font-family: var(--font-display);
      font-size: 1.15rem;
      line-height: 1.7;
      color: var(--text);
      font-style: italic;
      border-left: 3px solid var(--accent-purple);
      padding-left: 24px;
      margin-top: 32px;
    }

    @media (max-width: 700px) {
      .about-book-card { padding: 36px 28px; }
    }

    /* ── ABOUT / BIO SECTION ── */
    .about-section {
      position: relative;
      z-index: 1;
      padding: 96px 0;
    }

    .about-section .section-header {
      margin-bottom: 48px;
    }

    /* The unified dyad card */
    .bio-container {
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(168,85,247,0.22);
      box-shadow: 0 32px 80px rgba(0,0,0,0.55), 0 0 0 1px rgba(79,142,247,0.06);
    }

    /* Photo background — contained inside the card */
    .bio-photo-bg {
      position: absolute;
      inset: 0;
      background-image: url('images/catie-photo.jpg');
      background-size: cover;
      background-position: center 15%;
      filter: saturate(0.5) brightness(0.28);
      z-index: 0;
    }

    /* Gradient overlay inside the card */
    .bio-photo-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(
        135deg,
        rgba(7,8,15,0.88) 0%,
        rgba(7,8,15,0.6) 50%,
        rgba(7,8,15,0.82) 100%
      );
      z-index: 1;
    }

    /* Content sits above background */
    .bio-inner {
      position: relative;
      z-index: 2;
      padding: 52px 48px;
    }

    @media (max-width: 700px) {
      .bio-inner { padding: 36px 24px; }
    }

    /* Two minds header — inside the card */
    .two-minds-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .two-minds-header .section-tag { margin-bottom: 14px; }

    .two-minds-title {
      font-family: var(--font-display);
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 700;
      font-style: italic;
      letter-spacing: -0.02em;
      background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 8px;
    }

    .two-minds-sub {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--text-dim);
    }

    .dyad-portraits {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
      align-items: center;
      gap: 20px;
      max-width: 650px;
      margin: 0 auto 48px;
    }

    .dyad-portraits figure {
      margin: 0;
    }

    .dyad-portraits img {
      display: block;
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      object-position: center 24%;
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 18px;
      box-shadow: 0 18px 48px rgba(0,0,0,0.35);
    }

    .dyad-portraits figure:last-of-type img {
      object-position: center 30%;
    }

    .dyad-portraits figcaption {
      margin-top: 10px;
      color: var(--text-muted);
      font-family: var(--font-mono);
      font-size: 0.66rem;
      letter-spacing: 0.14em;
      text-align: center;
      text-transform: uppercase;
    }

    .dyad-portraits > span {
      color: var(--accent-pink);
      font-family: var(--font-display);
      font-size: 2.2rem;
    }

    @media (max-width: 600px) {
      .dyad-portraits {
        gap: 10px;
      }
    }

    /* Bio grid — two columns separated by a hairline, no separate card boxes */
    .bio-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
    }
    @media (max-width: 700px) { .bio-grid { grid-template-columns: 1fr; } }

    .bio-col {
      padding: 4px 32px 4px 0;
    }
    .bio-col:last-child {
      padding: 4px 0 4px 32px;
      border-left: 1px solid rgba(255,255,255,0.08);
    }
    @media (max-width: 700px) {
      .bio-col { padding: 0 0 24px 0; }
      .bio-col:last-child { padding: 24px 0 0 0; border-left: none; border-top: 1px solid rgba(255,255,255,0.08); }
    }

    .bio-card-label {
      font-family: var(--font-mono);
      font-size: 0.63rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--accent-blue);
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .bio-card-label::after {
      content: '';
      flex: 1;
      height: 1px;
      background: rgba(255,255,255,0.07);
    }

    .bio-name {
      font-family: var(--font-display);
      font-size: 1.55rem;
      font-weight: 700;
      margin-bottom: 5px;
      letter-spacing: -0.01em;
    }

    .bio-role {
      font-size: 0.75rem;
      color: var(--accent-purple);
      font-family: var(--font-mono);
      letter-spacing: 0.04em;
      margin-bottom: 22px;
      line-height: 1.5;
    }

    .bio-details {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .bio-details li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .bio-details li .bio-detail-label {
      font-family: var(--font-mono);
      font-size: 0.62rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-dim);
      min-width: 70px;
      padding-top: 2px;
      flex-shrink: 0;
    }

    /* ── FOOTER ── */
    footer {
      border-top: 1px solid var(--border);
      padding: 44px 0;
      text-align: center;
      color: var(--text-dim);
      font-size: 0.825rem;
      position: relative;
      z-index: 1;
      font-family: var(--font-mono);
      letter-spacing: 0.04em;
      background: #000;
    }

    /* ── REVEAL ── */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.75s ease, transform 0.75s cubic-bezier(0.16,1,0.3,1);
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }

    /* ── BACK TO TOP ── */
    .back-to-top {
      position: fixed; bottom: 28px; right: 28px;
      width: 42px; height: 42px;
      background: rgba(7,8,15,0.9);
      border: 1px solid rgba(168,85,247,0.3);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      cursor: pointer; z-index: 200;
      opacity: 0; transform: translateY(12px);
      transition: opacity 0.3s, transform 0.3s, border-color 0.2s;
      color: var(--accent-purple);
    }
    .back-to-top.visible { opacity: 1; transform: translateY(0); }
    .back-to-top:hover { border-color: rgba(168,85,247,0.6); }

    /* Animated heading */
    .animated-heading .line {
      display: block;
      transform: translateY(100%);
      opacity: 0;
      transition: transform 0.7s cubic-bezier(0.16,1,0.3,1), opacity 0.6s ease;
      overflow: hidden;
    }
    .animated-heading.visible .line { transform: translateY(0); opacity: 1; }
    .animated-heading .line:nth-child(2) { transition-delay: 0.1s; }
    .animated-heading { overflow: hidden; }