:root {
    --bg: #F5EFE6; --surface: #FBF7EF; --surface-2: #EFE8DB;
    --ink: #0F0F0F; --ink-soft: #3D3833; --ink-muted: #8B8278;
    --line: #E5DDD0; --line-soft: #EFE8DB;
    --accent: #C73E1D; --accent-2: #E54E2D;
    --accent-soft: rgba(199, 62, 29, 0.08); --accent-glow: rgba(199, 62, 29, 0.18);
    --gold: #D9A852; --gold-soft: rgba(217, 168, 82, 0.12);
    --green: #25D366;
    --display: 'Satoshi', sans-serif; --serif: 'Satoshi', sans-serif;
    --body: 'Geist', sans-serif; --mono: 'Geist Mono', monospace;
    --ease: cubic-bezier(0.22, 1, 0.36, 1); --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { font-family: var(--body); background: var(--bg); color: var(--ink); line-height: 1.55; font-weight: 400; overflow-x: hidden; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; font-size: 16.5px; }
  @media (max-width: 640px) { body { font-size: 16px; line-height: 1.6; } }
  body::before { content: ''; position: fixed; inset: 0; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.4 0 0 0 0 0.35 0 0 0 0 0.3 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); opacity: 0.5; z-index: 1; mix-blend-mode: multiply; }
  .container { max-width: 1320px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 2; }
  @media (max-width: 640px) { .container { padding: 0 20px; } }
  ::selection { background: var(--accent); color: white; }

  /* PROMO STRIP */
  .promo-strip { background: var(--ink); color: var(--gold); overflow: hidden; border-bottom: 1px solid var(--ink); padding: 11px 0; position: relative; z-index: 101; }
  .promo-strip::before, .promo-strip::after { content: ''; position: absolute; top: 0; bottom: 0; width: 60px; z-index: 2; pointer-events: none; }
  .promo-strip::before { left: 0; background: linear-gradient(90deg, var(--ink), transparent); }
  .promo-strip::after { right: 0; background: linear-gradient(270deg, var(--ink), transparent); }
  .promo-track { display: flex; width: max-content; animation: promo-scroll 40s linear infinite; will-change: transform; }
  .promo-strip:hover .promo-track { animation-play-state: paused; }
  .promo-item { font-family: var(--mono); font-size: 12.5px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; padding: 0 28px; white-space: nowrap; display: inline-flex; align-items: center; gap: 14px; color: var(--gold); }
  .promo-item .promo-spark { color: var(--accent); font-size: 13px; }
  .promo-item strong { font-family: var(--display); font-weight: 700; color: var(--bg); text-transform: none; letter-spacing: -0.01em; font-size: 14.5px; }
  .promo-item .promo-code { background: var(--gold); color: var(--ink); padding: 3px 9px; border-radius: 4px; font-weight: 700; font-size: 11.5px; text-transform: none; letter-spacing: 0.04em; }
  @keyframes promo-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
  @media (max-width: 640px) { .promo-strip { padding: 9px 0; } .promo-item { font-size: 11px; padding: 0 20px; gap: 10px; } .promo-item strong { font-size: 12px; } .promo-item .promo-code { font-size: 10px; padding: 2px 7px; } }

  /* NAV */
  nav { position: sticky; top: 0; z-index: 100; background: rgba(245, 239, 230, 0.78); backdrop-filter: blur(20px) saturate(1.4); -webkit-backdrop-filter: blur(20px) saturate(1.4); border-bottom: 1px solid var(--line-soft); padding: 16px 0; transition: padding 0.3s var(--ease); }
  nav.scrolled { padding: 10px 0; box-shadow: 0 1px 0 var(--line-soft), 0 8px 32px -16px rgba(0,0,0,0.05); }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
  .logo { font-family: var(--display); font-size: 26px; font-weight: 700; letter-spacing: -0.04em; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 4px; }
  .logo-dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; margin-bottom: -2px; }
  .nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
  .nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s; position: relative; }
  .nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--accent); transition: width 0.3s var(--ease); }
  .nav-links a:hover { color: var(--accent); }
  .nav-links a:hover::after { width: 100%; }
  .nav-cta { background: var(--ink); color: var(--bg); padding: 11px 22px; border-radius: 999px; font-size: 14px; font-weight: 500; text-decoration: none; transition: all 0.3s var(--ease); display: inline-flex; align-items: center; gap: 6px; }
  .nav-cta:hover { background: var(--accent); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(199, 62, 29, 0.3); }
  .nav-cta .arrow { transition: transform 0.3s var(--ease); display: inline-block; }
  .nav-cta:hover .arrow { transform: translateX(3px); }
  @media (max-width: 900px) { .nav-links { display: none; } }

  section { position: relative; }

  /* === BLOG HERO === */
  .blog-hero {
    padding: 90px 0 50px;
    position: relative;
    overflow: hidden;
  }
  .blog-hero::before {
    content: '';
    position: absolute;
    top: -120px; left: 50%;
    transform: translateX(-50%);
    width: 900px; height: 540px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 65%);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
  }
  .blog-hero-inner {
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
  }
  .blog-eyebrow {
    display: inline-flex; align-items: center; gap: 12px;
    font-family: var(--mono); font-size: 11.5px; font-weight: 600;
    color: var(--accent); background: var(--accent-soft);
    padding: 7px 14px; border-radius: 999px;
    letter-spacing: 0.20em; text-transform: uppercase;
    margin-bottom: 28px;
  }
  .blog-eyebrow::before {
    content: ''; width: 7px; height: 7px;
    background: var(--accent); border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(199,62,29,0.18);
  }
  .blog-hero h1 {
    font-family: var(--display);
    font-size: clamp(48px, 6.4vw, 92px);
    font-weight: 600;
    line-height: 0.96;
    letter-spacing: -0.045em;
    color: var(--ink);
    margin-bottom: 28px;
  }
  .blog-hero h1 .serif {
    font-family: var(--serif); font-style: italic;
    color: var(--accent); font-weight: 600;
  }
  .blog-hero p.lead {
    font-size: clamp(17px, 1.5vw, 19px);
    line-height: 1.6;
    color: var(--ink-soft);
    max-width: 620px;
    margin: 0 auto;
  }
  .blog-hero p.lead strong { color: var(--ink); font-weight: 600; }

  /* === FILTER STRIP === */
  .filter-strip {
    padding: 30px 0 20px;
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 65px;
    background: rgba(245, 239, 230, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 50;
  }
  .filter-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
  }
  .filter-btn {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--ink-soft);
    padding: 9px 18px;
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.25s var(--ease);
  }
  .filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  .filter-btn.is-active {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--bg);
  }
  .filter-count {
    margin-left: 6px;
    color: var(--ink-muted);
    font-weight: 500;
  }
  .filter-btn.is-active .filter-count { color: var(--gold); }
  @media (max-width: 640px) {
    .filter-strip { padding: 20px 0 16px; top: 56px; }
    .filter-btn { padding: 8px 14px; font-size: 10.5px; letter-spacing: 0.08em; }
  }

  /* === FEATURED POST === */
  .featured-section {
    padding: 60px 0 30px;
  }
  .featured-label {
    font-family: var(--mono); font-size: 10.5px;
    color: var(--gold); letter-spacing: 0.20em;
    text-transform: uppercase; font-weight: 700;
    margin-bottom: 18px;
    display: inline-flex; align-items: center; gap: 10px;
  }
  .featured-label::before {
    content: ''; width: 24px; height: 1px;
    background: var(--gold);
  }
  .featured-card {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 60px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 24px;
    overflow: hidden;
    text-decoration: none;
    color: var(--ink);
    transition: all 0.4s var(--ease);
    position: relative;
  }
  .featured-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--gold) 100%);
    z-index: 2;
  }
  .featured-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 32px 64px -24px rgba(15,15,15,0.14);
    border-color: var(--accent);
  }
  .featured-cover {
    aspect-ratio: 5 / 4;
    background: linear-gradient(135deg, var(--accent) 0%, #6B1E0E 60%, var(--ink) 100%);
    position: relative;
    overflow: hidden;
  }
  .featured-cover::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.18), transparent 60%),
                radial-gradient(circle at 80% 80%, rgba(217,168,82,0.20), transparent 55%);
    pointer-events: none;
  }
  .featured-cover-mark {
    position: absolute;
    bottom: 28px; left: 28px;
    font-family: var(--display);
    font-weight: 700;
    font-size: clamp(72px, 9vw, 130px);
    color: rgba(255,255,255,0.10);
    line-height: 0.9;
    letter-spacing: -0.04em;
    pointer-events: none;
  }
  .featured-cover-pill {
    position: absolute;
    top: 28px; left: 28px;
    font-family: var(--mono);
    font-size: 10.5px; font-weight: 700;
    color: white;
    background: rgba(0,0,0,0.32);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 6px 12px; border-radius: 999px;
    letter-spacing: 0.16em; text-transform: uppercase;
    backdrop-filter: blur(8px);
  }
  .featured-content {
    padding: 50px 50px 50px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .featured-meta {
    font-family: var(--mono); font-size: 10.5px;
    color: var(--ink-muted); letter-spacing: 0.16em;
    text-transform: uppercase; font-weight: 500;
    margin-bottom: 22px;
  }
  .featured-meta .sep { color: var(--accent); margin: 0 8px; }
  .featured-card h2 {
    font-family: var(--display);
    font-size: clamp(32px, 3.6vw, 44px);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.035em;
    color: var(--ink);
    margin-bottom: 22px;
    transition: color 0.3s var(--ease);
  }
  .featured-card h2 .serif {
    font-family: var(--serif); font-style: italic;
    color: var(--accent); font-weight: 600;
  }
  .featured-card:hover h2 { color: var(--accent); }
  .featured-card p {
    font-size: 16px;
    line-height: 1.65;
    color: var(--ink-soft);
    margin-bottom: 24px;
  }
  .featured-cta {
    font-family: var(--mono); font-size: 11px;
    color: var(--accent); letter-spacing: 0.16em;
    text-transform: uppercase; font-weight: 600;
    display: inline-flex; align-items: center; gap: 8px;
    margin-top: auto;
  }
  .featured-cta .arrow { transition: transform 0.3s var(--ease); }
  .featured-card:hover .featured-cta .arrow { transform: translateX(4px); }

  @media (max-width: 880px) {
    .featured-card { grid-template-columns: 1fr; gap: 0; }
    .featured-cover { aspect-ratio: 16 / 10; }
    .featured-content { padding: 36px 30px 36px; }
  }

  /* === POSTS GRID === */
  .posts-section {
    padding: 60px 0 100px;
  }
  .posts-section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 36px;
    gap: 16px;
    flex-wrap: wrap;
  }
  .posts-section-label {
    font-family: var(--mono); font-size: 10.5px;
    color: var(--ink-muted); letter-spacing: 0.20em;
    text-transform: uppercase; font-weight: 600;
    display: inline-flex; align-items: center; gap: 10px;
  }
  .posts-section-label::before {
    content: ''; width: 24px; height: 1px;
    background: var(--ink-muted);
  }
  .posts-count {
    font-family: var(--mono); font-size: 11px;
    color: var(--ink-muted); letter-spacing: 0.10em;
    text-transform: uppercase;
  }
  .posts-count strong { color: var(--ink); font-weight: 600; }

  .posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .post-card {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    color: var(--ink);
    transition: all 0.4s var(--ease);
    display: flex;
    flex-direction: column;
  }
  .post-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 24px 48px -16px rgba(15,15,15,0.10);
  }
  .post-cover {
    aspect-ratio: 16 / 10;
    position: relative;
    overflow: hidden;
  }
  .post-cover::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.18), transparent 60%),
                radial-gradient(circle at 80% 80%, rgba(0,0,0,0.18), transparent 55%);
    pointer-events: none;
  }
  .post-cover.cover-1 { background: linear-gradient(135deg, var(--accent) 0%, #6B1E0E 100%); }
  .post-cover.cover-2 { background: linear-gradient(135deg, var(--gold) 0%, #8a6420 100%); }
  .post-cover.cover-3 { background: linear-gradient(135deg, var(--ink) 0%, #2a2520 100%); }
  .post-cover.cover-4 { background: linear-gradient(225deg, var(--accent) 30%, var(--gold) 100%); }
  .post-cover.cover-5 { background: linear-gradient(135deg, #6B1E0E 0%, var(--ink) 100%); }
  .post-cover.cover-6 { background: linear-gradient(135deg, var(--gold) 0%, var(--accent) 100%); }
  .post-cover-mark {
    position: absolute;
    bottom: 16px; left: 18px;
    font-family: var(--display);
    font-weight: 700;
    font-size: 56px;
    color: rgba(255,255,255,0.10);
    line-height: 0.9;
    letter-spacing: -0.04em;
    pointer-events: none;
  }
  .post-pill {
    position: absolute;
    top: 16px; left: 18px;
    font-family: var(--mono);
    font-size: 9.5px; font-weight: 700;
    color: white;
    background: rgba(0,0,0,0.34);
    border: 1px solid rgba(255,255,255,0.22);
    padding: 5px 10px; border-radius: 999px;
    letter-spacing: 0.16em; text-transform: uppercase;
    backdrop-filter: blur(8px);
  }
  .post-body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
  .post-meta {
    font-family: var(--mono); font-size: 10px;
    color: var(--ink-muted); letter-spacing: 0.14em;
    text-transform: uppercase; font-weight: 500;
    margin-bottom: 12px;
  }
  .post-meta .sep { color: var(--accent); margin: 0 6px; }
  .post-card h3 {
    font-family: var(--display);
    font-size: 19px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.018em;
    color: var(--ink);
    margin-bottom: 10px;
    transition: color 0.3s var(--ease);
  }
  .post-card h3 .serif {
    font-family: var(--serif); font-style: italic;
    color: var(--accent); font-weight: 600;
  }
  .post-card:hover h3 { color: var(--accent); }
  .post-card p {
    font-size: 14.5px;
    line-height: 1.55;
    color: var(--ink-soft);
    margin-bottom: 16px;
  }
  .post-card-cta {
    margin-top: auto;
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .post-card-cta .arrow { transition: transform 0.3s var(--ease); }
  .post-card:hover .post-card-cta .arrow { transform: translateX(4px); }

  @media (max-width: 980px) {
    .posts-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  }
  @media (max-width: 600px) {
    .posts-grid { grid-template-columns: 1fr; gap: 16px; }
  }

  /* Empty state for filter */
  .empty-state {
    text-align: center;
    padding: 60px 20px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, opacity 0.25s ease;
  }
  .empty-state.is-shown { max-height: 300px; opacity: 1; }
  .empty-state p {
    font-family: var(--serif);
    font-style: italic;
    font-size: 17px;
    color: var(--ink-muted);
    font-weight: 500;
  }
  .empty-state strong {
    font-family: var(--display);
    font-style: normal;
    color: var(--ink);
    font-weight: 600;
  }

  /* === CLOSING WHATSAPP STRIP === */
  .blog-closing {
    background: var(--surface);
    border-top: 1px solid var(--line);
    padding: 90px 0;
    text-align: center;
  }
  .blog-closing-inner {
    max-width: 660px;
    margin: 0 auto;
  }
  .blog-closing-eyebrow {
    font-family: var(--mono); font-size: 11.5px;
    color: var(--accent); letter-spacing: 0.18em;
    text-transform: uppercase; font-weight: 600;
    margin-bottom: 16px;
  }
  .blog-closing h2 {
    font-family: var(--display);
    font-size: clamp(28px, 3.6vw, 42px);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.035em;
    color: var(--ink);
    margin-bottom: 16px;
  }
  .blog-closing h2 .serif {
    font-family: var(--serif); font-style: italic;
    color: var(--accent); font-weight: 600;
  }
  .blog-closing p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink-soft);
    margin-bottom: 30px;
  }
  .wa-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--green);
    color: white;
    text-decoration: none;
    padding: 16px 28px;
    border-radius: 999px;
    font-size: 15.5px;
    font-weight: 600;
    transition: all 0.3s var(--ease);
    box-shadow: 0 12px 32px -8px rgba(37, 211, 102, 0.4);
  }
  .wa-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 40px -8px rgba(37, 211, 102, 0.5);
  }
  .wa-btn svg { width: 22px; height: 22px; fill: white; }

  /* FOOTER */
  footer { background: var(--bg); padding: 64px 0 32px; border-top: 1px solid var(--line); }
  .footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
  .footer-brand .logo { font-size: 30px; margin-bottom: 18px; display: inline-flex; }
  .footer-brand p { color: var(--ink-soft); font-size: 14px; line-height: 1.6; max-width: 340px; margin-bottom: 20px; }
  .footer-brand .socials { display: flex; gap: 10px; }
  .footer-brand .socials a { width: 36px; height: 36px; border-radius: 50%; background: var(--surface); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; color: var(--ink-soft); text-decoration: none; transition: all 0.3s var(--ease); font-size: 14px; }
  .footer-brand .socials a:hover { background: var(--ink); color: var(--bg); transform: translateY(-2px); border-color: var(--ink); }
  .footer-col h5 { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--ink); margin-bottom: 18px; font-weight: 600; }
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a { color: var(--ink-soft); text-decoration: none; font-size: 14px; transition: color 0.2s; }
  .footer-col a:hover { color: var(--accent); }
  .footer-bottom { padding-top: 28px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--ink-muted); flex-wrap: wrap; gap: 12px; }
  .footer-bottom .made { font-family: var(--serif); font-style: italic; font-weight: 500; font-size: 15px; }
  @media (max-width: 768px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-bottom { flex-direction: column; text-align: center; } }

  /* FLOATING WHATSAPP */
  .wa-float { position: fixed; bottom: 24px; right: 24px; width: 60px; height: 60px; background: var(--green); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 12px 32px -4px rgba(37, 211, 102, 0.5), 0 4px 12px -2px rgba(0,0,0,0.1); z-index: 99; text-decoration: none; transition: all 0.3s var(--ease); animation: waEnter 0.6s var(--ease-bounce) 1s both; }
  .wa-float:hover { transform: translateY(-4px); box-shadow: 0 16px 40px -4px rgba(37, 211, 102, 0.55); }
  .wa-float svg { width: 30px; height: 30px; fill: white; }
  @keyframes waEnter { from { transform: translateY(60px) scale(0.5); opacity: 0; } to { transform: translateY(0) scale(1); opacity: 1; } }
  @media (max-width: 600px) { .wa-float { width: 54px; height: 54px; bottom: 18px; right: 18px; } .wa-float svg { width: 26px; height: 26px; } }

  /* REVEAL */
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
  .reveal.in { opacity: 1; transform: translateY(0); }
  .reveal[data-delay="1"] { transition-delay: 0.08s; }
  .reveal[data-delay="2"] { transition-delay: 0.16s; }
  .reveal[data-delay="3"] { transition-delay: 0.24s; }

  /* === MOBILE MENU + SCROLL-TOP (universal chrome) === */
  .nav-burger {
    display: none;
    background: transparent;
    border: 1px solid var(--line);
    width: 44px;
    height: 44px;
    border-radius: 10px;
    cursor: pointer;
    padding: 0;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
  }
  .nav-burger:hover { border-color: var(--ink); }
  .nav-burger span {
    display: block;
    width: 18px;
    height: 1.5px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
  }
  @media (max-width: 880px) {
    .nav-burger { display: inline-flex; }
    .nav-cta { display: none !important; }
    .nav-links { display: none !important; }
  }

  /* Slide-in mobile menu panel */
  .mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    visibility: hidden;
  }
  .mobile-menu[aria-hidden="false"] {
    pointer-events: auto;
    visibility: visible;
  }
  .mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 15, 15, 0.5);
    opacity: 0;
    transition: opacity 0.35s var(--ease);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }
  .mobile-menu[aria-hidden="false"] .mobile-menu-backdrop { opacity: 1; }
  .mobile-menu-panel {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: min(360px, 88vw);
    background: var(--surface, #FBF7EF);
    box-shadow: -24px 0 60px -20px rgba(15, 15, 15, 0.25);
    transform: translateX(100%);
    transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
    display: flex;
    flex-direction: column;
    padding: 28px 28px 32px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .mobile-menu[aria-hidden="false"] .mobile-menu-panel { transform: translateX(0); }
  .mobile-menu-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 28px;
  }
  .mobile-menu-head .logo {
    font-family: var(--display);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--ink);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .mobile-menu-head .logo-dot {
    width: 7px; height: 7px;
    background: var(--accent);
    border-radius: 50%;
    display: inline-block;
  }
  .mobile-menu-close {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
  }
  .mobile-menu-close:hover { border-color: var(--ink); transform: rotate(90deg); }
  .mobile-menu-close span {
    position: absolute;
    top: 50%; left: 50%;
    width: 14px;
    height: 1.5px;
    background: var(--ink);
    border-radius: 2px;
  }
  .mobile-menu-close span:nth-child(1) { transform: translate(-50%, -50%) rotate(45deg); }
  .mobile-menu-close span:nth-child(2) { transform: translate(-50%, -50%) rotate(-45deg); }
  .mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 28px;
  }
  .mobile-menu-links a {
    font-family: var(--display);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--ink);
    text-decoration: none;
    padding: 14px 0;
    border-bottom: 1px solid var(--line-soft, var(--line));
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
  }
  .mobile-menu-links a::after {
    content: '→';
    font-family: var(--mono);
    font-size: 18px;
    color: var(--ink-muted);
    transition: transform 0.25s var(--ease), color 0.25s var(--ease);
  }
  .mobile-menu-links a:hover {
    color: var(--accent);
    padding-left: 6px;
  }
  .mobile-menu-links a:hover::after {
    color: var(--accent);
    transform: translateX(4px);
  }
  .mobile-menu-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--accent);
    color: #FBF7EF;
    text-decoration: none;
    padding: 16px 22px;
    border-radius: 999px;
    font-family: var(--body);
    font-size: 15px;
    font-weight: 600;
    transition: background 0.25s var(--ease), transform 0.25s var(--ease);
    margin-bottom: 28px;
  }
  .mobile-menu-cta:hover { background: var(--accent-2); transform: translateY(-1px); }
  .mobile-menu-cta .arrow { transition: transform 0.25s var(--ease); }
  .mobile-menu-cta:hover .arrow { transform: translateX(3px); }
  .mobile-menu-foot {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-muted);
    letter-spacing: 0.04em;
  }
  .mobile-menu-foot a {
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
  }
  .mobile-menu-foot a:hover { color: var(--accent); }

  /* Scroll-to-top floating button */
    .scroll-top {
    position: fixed;
    right: 24px;
    bottom: 96px;
    z-index: 90;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--surface, #FBF7EF);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px) scale(0.9);
    transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
    box-shadow: 0 12px 28px -10px rgba(15, 15, 15, 0.26);
  }
  .scroll-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }
  .scroll-top:hover { transform: translateY(-3px) scale(1.06); box-shadow: 0 18px 36px -10px rgba(15,15,15,0.32); }
  .st-ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
  .st-ring circle { fill: none; stroke-width: 2.5; }
  .st-track { stroke: var(--line); }
  .st-prog { stroke: var(--accent); stroke-linecap: round; stroke-dasharray: 132; stroke-dashoffset: 132; transition: stroke-dashoffset 0.12s linear; }
  .st-arrow { position: relative; z-index: 1; font-size: 18px; font-weight: 700; color: var(--accent); line-height: 1; transition: transform 0.25s var(--ease); }
  .scroll-top:hover .st-arrow { transform: translateY(-2px); }
  @media (max-width: 600px) {
    .scroll-top { right: 16px; width: 44px; height: 44px; }
  }

  /* Reduced motion */
  @media (prefers-reduced-motion: reduce) {
    .mobile-menu-backdrop, .mobile-menu-panel, .scroll-top { transition: opacity 0.15s linear; }
    .mobile-menu-panel { transform: none !important; }
    .mobile-menu[aria-hidden="true"] .mobile-menu-panel { display: none; }
  }