:root {
      --bg: #f5f5f7;
      --bg-elevated: rgba(255, 255, 255, 0.62);
      --bg-solid: #ffffff;
      --ink: #1d1d1f;
      --ink-secondary: #6e6e73;
      --ink-muted: #86868b;
      --border: rgba(0, 0, 0, 0.08);
      --border-strong: rgba(0, 0, 0, 0.14);
      --accent: #0071e3;
      --accent-hover: #0077ed;
      --glass: rgba(255, 255, 255, 0.55);
      --glass-border: rgba(255, 255, 255, 0.65);
      --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.04);
      --nav-h: 48px;
      --font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
      --radius: 16px;
      --radius-sm: 10px;
      --radius-full: 980px;
      --safe-bottom: env(safe-area-inset-bottom, 0px);
      --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
      --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    }

    html[data-theme="dark"] {
      --bg: #000000;
      --bg-elevated: rgba(28, 28, 30, 0.6);
      --bg-solid: #1c1c1e;
      --ink: #f5f5f7;
      --ink-secondary: #a1a1a6;
      --ink-muted: #6e6e73;
      --border: rgba(255, 255, 255, 0.09);
      --border-strong: rgba(255, 255, 255, 0.16);
      --accent: #2997ff;
      --accent-hover: #147ce5;
      --glass: rgba(28, 28, 30, 0.55);
      --glass-border: rgba(255, 255, 255, 0.12);
      --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.35);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font);
      background: var(--bg);
      color: var(--ink);
      line-height: 1.47059;
      font-weight: 400;
      letter-spacing: -0.022em;
      min-height: 100dvh;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      position: relative;
    }
    ::selection { background: var(--accent); color: #fff; }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

    .skip-link {
      position: absolute; left: 1rem; top: -100px; z-index: 9999;
      background: var(--ink); color: var(--bg); padding: .55rem 1rem;
      border-radius: var(--radius-sm); font-size: .8rem; font-weight: 600;
    }
    .skip-link:focus { top: .75rem; }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

    /* ─── Background ─── */
    .bg-layer {
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      background: var(--bg);
    }
    .bg-mesh {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background:
        radial-gradient(ellipse 90% 70% at 10% 0%, rgba(0, 113, 227, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse 70% 60% at 90% 10%, rgba(94, 92, 230, 0.14) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 80% 85%, rgba(0, 199, 190, 0.1) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 15% 90%, rgba(255, 149, 0, 0.08) 0%, transparent 50%);
    }
    html[data-theme="dark"] .bg-mesh {
      background:
        radial-gradient(ellipse 90% 70% at 10% 0%, rgba(41, 151, 255, 0.22) 0%, transparent 55%),
        radial-gradient(ellipse 70% 60% at 90% 10%, rgba(94, 92, 230, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 80% 85%, rgba(50, 215, 205, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 15% 90%, rgba(255, 159, 10, 0.1) 0%, transparent 50%);
    }
    /* ─── Navigation ─── */
    nav.top {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      height: var(--nav-h);
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 max(1.25rem, 3.5vw);
      background: var(--glass);
      backdrop-filter: saturate(180%) blur(28px);
      -webkit-backdrop-filter: saturate(180%) blur(28px);
      border-bottom: 1px solid var(--border);
    }
    .logo {
      font-weight: 600; font-size: .9rem; letter-spacing: -0.03em;
      display: flex; align-items: center; gap: .5rem;
      color: var(--ink);
    }
    .logo-mark {
      width: 20px; height: 20px; border-radius: 5px;
      overflow: hidden; flex-shrink: 0;
      display: flex; align-items: center; justify-content: center;
    }
    .logo-mark img { width: 100%; height: 100%; object-fit: contain; }
    .nav-links {
      display: flex; align-items: center; gap: 1.75rem; list-style: none;
      position: absolute; left: 50%; transform: translateX(-50%);
    }
    .nav-links a {
      font-size: .72rem; font-weight: 400; color: var(--ink-secondary);
      letter-spacing: -0.01em;
      transition: color 0.2s var(--ease);
    }
    .nav-links a:hover { color: var(--ink); }
    .nav-right { display: flex; align-items: center; gap: .4rem; }
    .btn-ghost {
      font-size: .72rem; font-weight: 400; color: var(--ink-secondary);
      padding: .35rem .75rem; border-radius: var(--radius-full);
      transition: color 0.2s, background 0.2s var(--ease);
    }
    .btn-ghost:hover { color: var(--ink); background: var(--border); }
    .btn-primary {
      font-size: .72rem; font-weight: 500;
      background: var(--accent); color: #fff;
      padding: .4rem 1rem; border-radius: var(--radius-full);
      transition: background 0.2s var(--ease), transform 0.15s var(--ease);
    }
    .btn-primary:hover { background: var(--accent-hover); }
    .btn-primary:active { transform: scale(0.97); }
    .icon-btn {
      width: 30px; height: 30px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      color: var(--ink-secondary);
      transition: background 0.2s, color 0.2s var(--ease);
    }
    .icon-btn:hover { background: var(--border); color: var(--ink); }
    .icon-btn svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; }
    .menu-btn { display: none; }

    .mobile-nav {
      display: none; position: fixed; inset: 0; z-index: 90;
      background: var(--glass);
      backdrop-filter: saturate(180%) blur(40px);
      -webkit-backdrop-filter: saturate(180%) blur(40px);
      padding: calc(var(--nav-h) + 2rem) 1.5rem 2rem;
      flex-direction: column;
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav a {
      font-size: 1.6rem; font-weight: 500; padding: .9rem 0;
      letter-spacing: -0.03em; color: var(--ink);
      border-bottom: 1px solid var(--border);
      transition: opacity 0.2s;
    }
    .mobile-nav a:hover { opacity: 0.55; }
    .mobile-nav .btn-primary {
      margin-top: 1.75rem; text-align: center; display: block;
      font-size: .95rem; padding: .85rem 1.4rem;
    }

    /* ─── Hero ─── */
    .hero {
      padding: calc(var(--nav-h) + 6.5rem) max(1.25rem, 4vw) 4rem;
      max-width: 860px; margin: 0 auto;
      text-align: center;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: .45rem;
      font-size: .68rem; font-weight: 500; color: var(--ink-secondary);
      background: var(--glass);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid var(--glass-border);
      padding: .35rem .9rem; border-radius: var(--radius-full);
      margin-bottom: 1.75rem;
      letter-spacing: 0.02em;
      box-shadow: var(--glass-shadow);
    }
    .hero-badge i {
      width: 6px; height: 6px; border-radius: 50%;
      background: #30d158;
      box-shadow: 0 0 0 3px rgba(48, 209, 88, 0.2);
    }
    .hero h1 {
      font-weight: 600;
      font-size: clamp(2.4rem, 6.5vw, 3.75rem);
      line-height: 1.07;
      letter-spacing: -0.035em;
      max-width: 720px; margin: 0 auto;
      color: var(--ink);
    }
    .hero h1 span {
      color: var(--ink-secondary);
    }
    .hero-sub {
      margin: 1.35rem auto 0; max-width: 440px;
      font-size: 1.1rem; font-weight: 400;
      color: var(--ink-secondary); line-height: 1.5;
      letter-spacing: -0.015em;
    }
    .hero-actions {
      display: flex; flex-wrap: wrap; gap: .75rem;
      justify-content: center; margin-top: 2rem;
    }
    .btn-lg {
      font-size: .9rem; font-weight: 500;
      padding: .75rem 1.5rem; border-radius: var(--radius-full);
      transition: all 0.2s var(--ease);
      letter-spacing: -0.01em;
    }
    .btn-lg.primary {
      background: var(--accent); color: #fff;
      box-shadow: 0 2px 8px rgba(0, 113, 227, 0.22);
    }
    .btn-lg.primary:hover {
      background: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(0, 113, 227, 0.28);
      transform: translateY(-1px);
    }
    .btn-lg.primary:active { transform: scale(0.98); }
    .btn-lg.secondary {
      background: transparent; color: var(--accent);
    }
    .btn-lg.secondary:hover { opacity: 0.65; }

    .search-box {
      max-width: 480px; margin: 2.75rem auto 0;
    }
    .search-box form {
      display: flex; align-items: center;
      background: var(--glass);
      backdrop-filter: blur(28px);
      -webkit-backdrop-filter: blur(28px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-full);
      padding: 0 5px 0 1.15rem;
      height: 48px;
      box-shadow: var(--glass-shadow);
      transition: border-color 0.25s, box-shadow 0.25s var(--ease);
    }
    .search-box form:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12), var(--glass-shadow);
    }
    .search-box input {
      flex: 1; border: none; outline: none; background: transparent;
      font-family: var(--font); font-size: .95rem; color: var(--ink);
      min-width: 0; letter-spacing: -0.01em;
    }
    .search-box input::placeholder { color: var(--ink-muted); }
    .search-box button {
      width: 38px; height: 38px; border-radius: 50%;
      background: var(--accent); color: #fff;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
      transition: background 0.2s, transform 0.15s var(--ease);
    }
    .search-box button:hover { background: var(--accent-hover); }
    .search-box button:active { transform: scale(0.94); }
    .search-box button svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2.2; stroke-linecap: round; }

    /* ─── Stats ─── */
    .stats-wrap { padding: 0 max(1.25rem, 4vw) 4.5rem; }
    .stats {
      display: grid; grid-template-columns: repeat(4, 1fr);
      max-width: 640px; margin: 0 auto;
      background: var(--glass);
      backdrop-filter: blur(28px);
      -webkit-backdrop-filter: blur(28px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--glass-shadow);
    }
    .stat {
      padding: 1.5rem .85rem; text-align: center;
      border-right: 1px solid var(--border);
    }
    .stat:last-child { border-right: none; }
    .stat-n {
      font-size: 1.5rem; font-weight: 600; letter-spacing: -0.04em;
      color: var(--ink); line-height: 1.15;
    }
    .stat-l {
      font-size: .65rem; color: var(--ink-muted);
      margin-top: .25rem; font-weight: 500;
      letter-spacing: 0.04em; text-transform: uppercase;
    }

    /* ─── Sections ─── */
    section { padding: 5.5rem max(1.25rem, 4vw); }
    .section-inner { max-width: 980px; margin: 0 auto; }
    .section-label {
      font-size: .65rem; font-weight: 500; letter-spacing: 0.1em;
      text-transform: uppercase; color: var(--accent); margin-bottom: .6rem;
    }
    .section-title {
      font-size: clamp(1.75rem, 3.5vw, 2.35rem);
      font-weight: 600; letter-spacing: -0.03em; line-height: 1.12;
      color: var(--ink); margin-bottom: .65rem;
    }
    .section-desc {
      font-size: 1.05rem; color: var(--ink-secondary);
      max-width: 460px; line-height: 1.5; letter-spacing: -0.01em;
    }
    .apps-section .section-inner {
      text-align: left;
    }
    .apps-section .section-desc {
      margin-left: 0;
      margin-right: 0;
    }

    /* ─── Apps ─── */
    .apps-section {
      background: transparent;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .product-group {
      margin-top: 3.5rem;
    }
    .product-group:first-of-type {
      margin-top: 3rem;
    }
    .product-group-label {
      font-size: .65rem;
      font-weight: 500;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink-muted);
      margin-bottom: 1.6rem;
      text-align: left;
      padding-bottom: .7rem;
      border-bottom: 1px solid var(--border);
    }
    .apps-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-start;
      gap: 2.25rem 2.75rem;
    }
    .app-tile {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: .55rem;
      width: 120px;
      padding: 0;
      background: transparent;
      border: none;
      text-align: center;
      transition: transform 0.22s var(--ease-out);
      -webkit-tap-highlight-color: transparent;
    }
    .app-tile:hover {
      transform: translateY(-4px);
    }
    .app-icon {
      width: 96px;
      height: 96px;
      border-radius: 22px;
      background: transparent;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: visible;
      box-shadow: none;
      transition: transform 0.22s var(--ease-out), filter 0.22s var(--ease-out);
    }
    .app-tile:hover .app-icon {
      transform: scale(1.06);
      filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.14));
    }
    html[data-theme="dark"] .app-tile:hover .app-icon {
      filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.5));
    }
    .app-icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      border-radius: 22px;
      transform: scale(1.14);
    }
    .app-icon.icon-lg img {
      transform: scale(1.32);
    }
    .app-icon .fb {
      width: 100%; height: 100%; display: none;
      align-items: center; justify-content: center;
      font-size: 1.15rem; font-weight: 600; color: var(--ink-secondary);
      background: transparent;
      border: 1px solid var(--border);
      border-radius: 22px;
    }
    .app-name {
      font-size: .82rem;
      font-weight: 600;
      color: var(--ink);
      letter-spacing: -0.02em;
      line-height: 1.2;
      margin-top: .2rem;
    }
    .app-desc {
      display: block;
      font-size: .7rem;
      font-weight: 400;
      color: var(--ink-muted);
      line-height: 1.3;
      letter-spacing: -0.01em;
      max-width: 100px;
    }

    /* ─── Principles ─── */
    .principles {
      display: grid; grid-template-columns: repeat(4, 1fr);
      gap: 1px; background: var(--border);
      border: 1px solid var(--glass-border);
      border-radius: 20px;
      overflow: hidden; margin-top: 4rem;
      box-shadow: var(--glass-shadow);
      text-align: left;
    }
    .principle {
      background: var(--glass);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      padding: 1.75rem 1.4rem;
    }
    .principle h3 {
      font-size: .85rem; font-weight: 600; margin-bottom: .4rem;
      letter-spacing: -0.02em;
    }
    .principle p {
      font-size: .8rem; color: var(--ink-secondary); line-height: 1.5;
    }

    /* ─── Vision ─── */
    .vision-grid {
      display: grid; grid-template-columns: 1fr 1.2fr;
      gap: 3.5rem; align-items: start; margin-top: 1.25rem;
    }
    .vision-quote {
      font-size: clamp(1.4rem, 2.8vw, 1.9rem);
      font-weight: 600; line-height: 1.25;
      letter-spacing: -0.03em; color: var(--ink);
    }
    .vision-body {
      font-size: 1rem; color: var(--ink-secondary);
      line-height: 1.65; letter-spacing: -0.01em;
    }
    .vision-body p + p { margin-top: 1rem; }

    /* ─── Features ─── */
    .features-section {
      background: rgba(255, 255, 255, 0.35);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    html[data-theme="dark"] .features-section {
      background: rgba(18, 18, 20, 0.5);
    }
    .feat-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 1.1rem; margin-top: 2.5rem;
    }
    .feat {
      background: var(--glass);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius);
      padding: 1.75rem 1.5rem;
      transition: all 0.3s var(--ease-out);
      box-shadow: 0 1px 4px rgba(0,0,0,0.03);
    }
    .feat:hover {
      border-color: var(--border-strong);
      box-shadow: var(--glass-shadow);
      transform: translateY(-2px);
    }
    .feat h3 {
      font-size: .95rem; font-weight: 600; margin-bottom: .5rem;
      letter-spacing: -0.02em;
    }
    .feat p {
      font-size: .85rem; color: var(--ink-secondary); line-height: 1.55;
    }

    /* ─── About ─── */
    .about-card {
      display: flex; gap: 2rem; align-items: flex-start;
      max-width: 640px; margin: 2.25rem auto 0;
      background: var(--glass);
      backdrop-filter: blur(28px);
      -webkit-backdrop-filter: blur(28px);
      border: 1px solid var(--glass-border);
      border-radius: 20px;
      padding: 2rem;
      box-shadow: var(--glass-shadow);
      text-align: left;
    }
    .about-avatar {
      width: 72px; height: 72px; border-radius: 50%; flex-shrink: 0;
      background: var(--bg); border: 2px solid var(--border);
      display: flex; align-items: center; justify-content: center;
      font-weight: 600; font-size: 1.1rem; color: var(--ink-secondary);
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    }
    .about-avatar img { width: 100%; height: 100%; object-fit: cover; }
    .about-name {
      font-size: 1.15rem; font-weight: 600; letter-spacing: -0.025em;
    }
    .about-role {
      font-size: .65rem; font-weight: 500; color: var(--ink-muted);
      text-transform: uppercase; letter-spacing: 0.07em; margin: .3rem 0 1rem;
    }
    .about-bio {
      font-size: .9rem; color: var(--ink-secondary); line-height: 1.6;
    }
    .about-actions {
      display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.35rem;
    }
    .chip {
      display: inline-flex; align-items: center; gap: .3rem;
      font-size: .75rem; font-weight: 500; color: var(--ink-secondary);
      border: 1px solid var(--border); padding: .4rem .85rem;
      border-radius: var(--radius-full);
      background: var(--bg-solid);
      transition: all 0.2s var(--ease);
    }
    .chip:hover {
      border-color: var(--border-strong); color: var(--ink);
      background: var(--bg);
      transform: translateY(-1px);
    }

    /* ─── Contact ─── */
    .contact-section {
      background: rgba(255, 255, 255, 0.35);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-top: 1px solid var(--border);
    }
    html[data-theme="dark"] .contact-section {
      background: rgba(18, 18, 20, 0.5);
    }
    .cta {
      background: var(--glass);
      backdrop-filter: blur(32px);
      -webkit-backdrop-filter: blur(32px);
      border: 1px solid var(--glass-border);
      border-radius: 24px;
      padding: 3rem 2.25rem;
      text-align: center;
      max-width: 560px; margin: 0 auto;
      box-shadow: var(--glass-shadow);
    }
    .cta h2 {
      font-weight: 600;
      font-size: clamp(1.5rem, 2.8vw, 1.9rem);
      letter-spacing: -0.03em; margin-bottom: .5rem;
    }
    .cta > p {
      color: var(--ink-secondary); margin-bottom: 1.5rem;
      font-size: 1rem; letter-spacing: -0.01em;
    }
    .cta-form {
      display: flex; gap: .45rem; max-width: 400px;
      margin: 0 auto; flex-wrap: wrap; justify-content: center;
    }
    .cta-form input {
      flex: 1; min-width: 180px;
      background: var(--bg-solid);
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      padding: .7rem 1.15rem;
      font-family: var(--font); font-size: .9rem;
      color: var(--ink); outline: none;
      transition: border-color 0.2s, box-shadow 0.2s var(--ease);
    }
    .cta-form input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
    }
    .cta-form input::placeholder { color: var(--ink-muted); }
    .cta-note {
      font-size: .7rem; color: var(--ink-muted); margin-top: 1rem;
    }
    .contact-row {
      display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center;
      margin-top: 1.75rem; padding-top: 1.75rem;
      border-top: 1px solid var(--border);
    }

    /* ─── Footer ─── */
    footer {
      border-top: 1px solid var(--border);
      padding: 2.25rem max(1.25rem, 4vw);
      padding-bottom: calc(2.25rem + var(--safe-bottom));
      display: flex; flex-wrap: wrap; align-items: flex-start;
      justify-content: space-between; gap: 1.5rem;
      max-width: 980px; margin: 0 auto;
    }
    .footer-links { 
      display: flex; 
      flex-wrap: wrap; 
      gap: 0.9rem 1.35rem; 
      max-width: 720px;
    }
    .footer-links a {
      font-size: .7rem; color: var(--ink-muted);
      transition: color 0.2s var(--ease);
    }
    .footer-links a:hover { color: var(--ink); }
    .footer-copy {
      width: 100%; font-size: .65rem; color: var(--ink-muted);
      text-align: center; margin-top: .8rem; letter-spacing: 0.01em;
    }

    /* ─── Reveal ─── */
    .reveal {
      opacity: 0; transform: translateY(16px);
      transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
    }
    .reveal.on { opacity: 1; transform: translateY(0); }

    /* ─── Responsive ─── */
    @media (max-width: 900px) {
      .nav-links { display: none; }
      .menu-btn { display: flex; }
      .stats { grid-template-columns: repeat(2, 1fr); }
      .stat:nth-child(2) { border-right: none; }
      .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
      .principles { grid-template-columns: 1fr 1fr; }
      .vision-grid { grid-template-columns: 1fr; gap: 1.75rem; }
      .feat-grid { grid-template-columns: 1fr 1fr; }
      .apps-grid { gap: 1.75rem 1.75rem; }
      .app-tile { width: 100px; }
      .app-icon { width: 76px; height: 76px; border-radius: 18px; }
    }
    @media (max-width: 560px) {
      .apps-grid { gap: 1.5rem 1.25rem; }
      .app-tile { width: 86px; }
      .app-icon {
        width: 68px;
        height: 68px;
        border-radius: 16px;
      }
      .app-name { font-size: .72rem; }
      .app-desc { font-size: .62rem; max-width: 82px; }
      .product-group { margin-top: 2.25rem; }
      .feat-grid { grid-template-columns: 1fr; }
      .principles { grid-template-columns: 1fr; }
      .about-card {
        flex-direction: column; align-items: center; text-align: center;
        padding: 1.75rem 1.35rem;
      }
      .about-actions { justify-content: center; }
      .hero-actions {
        flex-direction: column; align-items: stretch;
        max-width: 260px; margin-left: auto; margin-right: auto;
      }
      .btn-lg { text-align: center; }
      footer { flex-direction: column; align-items: flex-start; }
      .footer-copy { text-align: left; }
      .nav-right .btn-ghost { display: none; }
      .cta { padding: 2.25rem 1.35rem; border-radius: 20px; }
      section { padding: 4rem max(1.15rem, 4vw); }
      .hero { padding-top: calc(var(--nav-h) + 4.5rem); }
    }
  
    /* ═══════════════════════════════════════════════════════════
       LIQUID GLASS — layered translucency, specular rims, spring physics
       ═══════════════════════════════════════════════════════════ */
    :root {
      --nav-h: 64px;
      --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
      --lg-fill: linear-gradient(135deg, rgba(255,255,255,.58) 0%, rgba(255,255,255,.24) 100%);
      --lg-fill-strong: linear-gradient(135deg, rgba(255,255,255,.78) 0%, rgba(255,255,255,.42) 100%);
      --lg-blur: blur(24px) saturate(200%) brightness(1.05);
      --lg-edge: rgba(255,255,255,.7);
      --lg-field: rgba(255,255,255,.55);
      --lg-rim:
        inset 0 1px 0 rgba(255,255,255,.95),
        inset 0 -1px 0 rgba(255,255,255,.3),
        inset 1px 0 0 rgba(255,255,255,.35),
        inset -1px 0 0 rgba(255,255,255,.2),
        inset 0 14px 22px -14px rgba(255,255,255,.9),
        inset 0 -16px 26px -18px rgba(70,90,160,.14);
      --lg-shadow:
        0 24px 60px -18px rgba(30,50,120,.28),
        0 8px 22px -8px rgba(30,50,120,.12),
        0 1px 3px rgba(0,0,0,.05);
      --lg-spec: rgba(255,255,255,.6);
      --lg-sheen: rgba(255,255,255,.3);
    }
    html[data-theme="dark"] {
      --lg-fill: linear-gradient(135deg, rgba(255,255,255,.15) 0%, rgba(255,255,255,.05) 100%);
      --lg-fill-strong: linear-gradient(135deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,.09) 100%);
      --lg-blur: blur(26px) saturate(190%) brightness(1.1);
      --lg-edge: rgba(255,255,255,.16);
      --lg-field: rgba(255,255,255,.08);
      --lg-rim:
        inset 0 1px 0 rgba(255,255,255,.4),
        inset 0 -1px 0 rgba(255,255,255,.07),
        inset 1px 0 0 rgba(255,255,255,.12),
        inset -1px 0 0 rgba(255,255,255,.06),
        inset 0 14px 22px -14px rgba(255,255,255,.16),
        inset 0 -16px 26px -18px rgba(0,0,0,.5);
      --lg-shadow:
        0 28px 70px -20px rgba(0,0,0,.75),
        0 10px 26px -10px rgba(0,0,0,.5),
        0 1px 3px rgba(0,0,0,.4);
      --lg-spec: rgba(255,255,255,.2);
      --lg-sheen: rgba(255,255,255,.09);
    }

    /* Ambient colour field — gives the glass something to refract */
    .bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
    .orb {
      position: absolute; border-radius: 50%;
      filter: blur(72px); opacity: .55; will-change: transform;
      animation: orbDrift 28s ease-in-out infinite alternate;
    }
    .orb.o1 { width: 46vmax; height: 46vmax; top: -14%; left: -10%; background: #4aa3ff; }
    .orb.o2 { width: 40vmax; height: 40vmax; top: 6%; right: -12%; background: #a77bff; animation-duration: 34s; animation-delay: -8s; }
    .orb.o3 { width: 38vmax; height: 38vmax; bottom: -12%; right: 6%; background: #35e0d2; animation-duration: 31s; animation-delay: -15s; }
    .orb.o4 { width: 32vmax; height: 32vmax; bottom: 2%; left: 2%; background: #ffb35c; opacity: .4; animation-duration: 37s; animation-delay: -4s; }
    html[data-theme="dark"] .orb { opacity: .36; }
    html[data-theme="dark"] .orb.o4 { opacity: .26; }
    @keyframes orbDrift {
      0%   { transform: translate3d(0,0,0) scale(1); }
      50%  { transform: translate3d(6vmax,-4vmax,0) scale(1.12); }
      100% { transform: translate3d(-5vmax,5vmax,0) scale(.95); }
    }

    /* Glass surfaces */
    nav.top, .product-group, .stats, .principles, .feat, .about-card, .cta, .hero-badge, .search-box form {
      background: var(--lg-fill);
      -webkit-backdrop-filter: var(--lg-blur);
      backdrop-filter: var(--lg-blur);
      border: 1px solid var(--lg-edge);
      box-shadow: var(--lg-rim), var(--lg-shadow);
    }
    .product-group, .stats, .principles, .feat, .about-card, .cta, .hero-badge, .search-box form { position: relative; }

    /* Specular highlight that follows the pointer */
    nav.top::before, .product-group::before, .stats::before, .principles::before,
    .feat::before, .about-card::before, .cta::before, .search-box form::before {
      content: ""; position: absolute; inset: 0; border-radius: inherit;
      pointer-events: none; z-index: 0; opacity: .6;
      background:
        radial-gradient(340px circle at var(--mx, 50%) var(--my, -25%), var(--lg-spec), rgba(255,255,255,0) 65%),
        linear-gradient(180deg, var(--lg-sheen) 0%, rgba(255,255,255,0) 40%);
      transition: opacity .4s var(--ease);
    }
    nav.top:hover::before, .product-group:hover::before, .stats:hover::before, .principles:hover::before,
    .feat:hover::before, .about-card:hover::before, .cta:hover::before, .search-box form:hover::before { opacity: 1; }

    /* Floating pill navigation */
    nav.top {
      top: max(10px, env(safe-area-inset-top, 0px));
      left: 50%; right: auto;
      transform: translateX(-50%);
      width: min(1060px, calc(100% - 24px));
      height: 52px;
      padding: 0 .65rem 0 1.15rem;
      border-radius: 999px;
      transition: background .3s var(--ease), box-shadow .3s var(--ease);
    }
    nav.top.scrolled { background: var(--lg-fill-strong); }
    .nav-links { gap: .25rem; }
    .nav-links a {
      padding: .4rem .85rem; border-radius: 999px;
      transition: color .2s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
    }
    .nav-links a:hover {
      background: var(--lg-field);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.55), 0 2px 8px rgba(0,0,0,.05);
    }

    /* Controls */
    .btn-primary, .btn-lg.primary {
      background: linear-gradient(180deg, rgba(96,182,255,.98) 0%, rgba(0,113,227,.97) 100%);
      border: 1px solid rgba(255,255,255,.3);
      box-shadow:
        inset 0 1px 0 rgba(255,255,255,.6),
        inset 0 -1px 0 rgba(0,0,0,.14),
        0 8px 20px -6px rgba(0,113,227,.55),
        0 1px 2px rgba(0,60,140,.3);
      transition: transform .4s var(--spring), box-shadow .25s var(--ease), filter .25s var(--ease);
    }
    .btn-primary:hover, .btn-lg.primary:hover { background: linear-gradient(180deg, rgba(96,182,255,.98) 0%, rgba(0,113,227,.97) 100%); filter: brightness(1.07) saturate(1.1); transform: translateY(-1px) scale(1.03); }
    .btn-primary:active, .btn-lg.primary:active { transform: scale(.94); filter: brightness(.97); }
    .btn-lg.secondary {
      background: var(--lg-fill);
      -webkit-backdrop-filter: var(--lg-blur); backdrop-filter: var(--lg-blur);
      border: 1px solid var(--lg-edge);
      box-shadow: var(--lg-rim), 0 8px 20px -8px rgba(30,50,120,.2);
      transition: transform .4s var(--spring), background .25s var(--ease);
    }
    .btn-lg.secondary:hover { opacity: 1; background: var(--lg-fill-strong); transform: translateY(-1px) scale(1.03); }
    .btn-lg.secondary:active { transform: scale(.95); }
    .btn-ghost:hover, .icon-btn:hover {
      background: var(--lg-field);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.55), 0 2px 8px rgba(0,0,0,.05);
    }
    .icon-btn { transition: background .25s var(--ease), box-shadow .25s var(--ease), transform .35s var(--spring), color .2s; }
    .icon-btn:active { transform: scale(.88); }
    .chip {
      background: var(--lg-fill);
      border: 1px solid var(--lg-edge);
      box-shadow: var(--lg-rim), 0 4px 12px -6px rgba(30,50,120,.18);
      transition: transform .35s var(--spring), background .25s var(--ease), color .2s;
    }
    .chip:hover { background: var(--lg-fill-strong); transform: translateY(-2px) scale(1.04); }
    .chip:active { transform: scale(.95); }
    .cta-form input {
      background: var(--lg-field);
      border: 1px solid var(--lg-edge);
      box-shadow: inset 0 2px 5px rgba(0,0,0,.07), inset 0 1px 0 rgba(255,255,255,.35);
    }
    .cta-form input:focus { background: var(--lg-fill-strong); box-shadow: 0 0 0 4px rgba(0,113,227,.16), inset 0 1px 0 rgba(255,255,255,.5); }

    /* Section bands become transparent so each card blurs the real backdrop */
    .features-section, .contact-section,
    html[data-theme="dark"] .features-section, html[data-theme="dark"] .contact-section {
      background: transparent;
      -webkit-backdrop-filter: none; backdrop-filter: none;
    }
    .apps-section { border-color: transparent; }

    /* Product shelves as glass panels */
    .product-group { padding: 1.6rem 1.9rem 2.2rem; border-radius: 30px; }
    .product-group-label { border-bottom-color: rgba(128,128,140,.18); }

    .principles { border-radius: 26px; gap: 1px; }
    .principle { background: rgba(255,255,255,.14); -webkit-backdrop-filter: none; backdrop-filter: none; position: relative; z-index: 1; }
    html[data-theme="dark"] .principle { background: rgba(255,255,255,.04); }
    .principles { background-color: rgba(255,255,255,.3); }
    html[data-theme="dark"] .principles { background-color: rgba(255,255,255,.1); }
    .stats, .feat { border-radius: 24px; }
    .stat, .feat > *, .about-card > *, .cta > * { position: relative; z-index: 1; }
    .about-card, .cta { border-radius: 30px; }
    .feat { transition: transform .45s var(--spring), box-shadow .3s var(--ease), border-color .3s; }
    .feat:hover { transform: translateY(-4px) scale(1.012); box-shadow: var(--lg-rim), 0 34px 70px -20px rgba(30,50,120,.34); border-color: var(--lg-edge); }
    .about-avatar { box-shadow: 0 0 0 4px rgba(255,255,255,.45), var(--lg-shadow); border-color: var(--lg-edge); }

    /* App tiles: glass lozenge blooms behind the icon on hover */
    .app-tile { position: relative; isolation: isolate; transition: transform .45s var(--spring); }
    .app-tile::before {
      content: ""; position: absolute; inset: -10px -4px -8px; z-index: -1;
      border-radius: 28px; opacity: 0; transform: scale(.9);
      background: var(--lg-fill);
      box-shadow: var(--lg-rim), 0 18px 36px -14px rgba(30,50,120,.3);
      transition: opacity .3s var(--ease), transform .45s var(--spring);
    }
    .app-tile:hover { transform: translateY(-3px); }
    .app-tile:hover::before, .app-tile:focus-visible::before { opacity: 1; transform: scale(1); }
    .app-tile:active { transform: scale(.95); }
    .app-tile:hover .app-icon { transform: scale(1.08); }

    /* Mobile sheet */
    .mobile-nav {
      background: rgba(245,245,247,.5);
      -webkit-backdrop-filter: blur(50px) saturate(220%); backdrop-filter: blur(50px) saturate(220%);
    }
    html[data-theme="dark"] .mobile-nav { background: rgba(0,0,0,.42); }
    .mobile-nav a { border-bottom-color: rgba(128,128,140,.2); }

    /* Hero */
    .hero h1 { font-weight: 700; font-size: clamp(2.8rem, 8.5vw, 5.2rem); line-height: 1.02; letter-spacing: -0.045em; max-width: 820px; }
    .hero h1 span {
      background: linear-gradient(100deg, #0a84ff 5%, #7d6bff 48%, #ff6fa5 90%);
      -webkit-background-clip: text; background-clip: text;
      -webkit-text-fill-color: transparent; color: transparent;
    }
    .hero-sub { max-width: 480px; font-size: 1.2rem; }
    @keyframes lgRise {
      from { opacity: 0; transform: translateY(20px); filter: blur(10px); }
      to   { opacity: 1; transform: none; filter: blur(0); }
    }
    .hero h1 { animation: lgRise 1.1s var(--ease-out) .05s both; }
    .hero-sub { animation: lgRise 1.1s var(--ease-out) .2s both; }
    .hero-actions { animation: lgRise 1.1s var(--ease-out) .35s both; }

    @media (max-width: 560px) {
      nav.top { padding: 0 .4rem 0 .9rem; }
      .product-group { padding: 1.1rem 1rem 1.5rem; border-radius: 24px; }
      .about-card, .cta { border-radius: 24px; }
    }

    /* Fallbacks */
    @supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
      nav.top, .product-group, .stats, .principles, .feat, .about-card, .cta, .hero-badge, .search-box form { background: var(--bg-solid); }
    }
    @media (prefers-reduced-transparency: reduce) {
      nav.top, .product-group, .stats, .principles, .feat, .about-card, .cta, .mobile-nav, .btn-lg.secondary {
        -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--bg-solid);
      }
      .bg-orbs { display: none; }
    }

/* ─── Product Page Extras ─── */
.product-hero {
  padding: calc(var(--nav-h) + 5rem) max(1.25rem, 4vw) 3rem;
  max-width: 980px; margin: 0 auto;
  text-align: center;
}
.product-hero .product-badge {
  display: inline-flex; align-items: center; gap: .45rem;
  font-size: .68rem; font-weight: 500; color: var(--ink-secondary);
  background: var(--lg-fill);
  backdrop-filter: var(--lg-blur);
  -webkit-backdrop-filter: var(--lg-blur);
  border: 1px solid var(--lg-edge);
  padding: .35rem .9rem; border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
  box-shadow: var(--lg-rim), var(--lg-shadow);
}
.product-hero h1 {
  font-weight: 700;
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: .85rem;
}
.product-hero .lead {
  font-size: 1.15rem; color: var(--ink-secondary);
  max-width: 520px; margin: 0 auto 1.75rem; line-height: 1.5;
}
.product-actions {
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center;
}
.demo-section {
  padding: 3rem max(1.25rem, 4vw) 4rem;
  max-width: 980px; margin: 0 auto;
}
.demo-card {
  background: var(--lg-fill);
  -webkit-backdrop-filter: var(--lg-blur);
  backdrop-filter: var(--lg-blur);
  border: 1px solid var(--lg-edge);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--lg-rim), var(--lg-shadow);
  margin-bottom: 2rem;
}
.demo-card img {
  width: 100% !important;
  height: auto !important;
  max-height: none !important;
  object-fit: contain !important;
  display: block !important;
  background: #ffffff !important;
}
.demo-caption {
  padding: 1.25rem 1.5rem;
  font-size: .9rem; color: var(--ink-secondary);
  border-top: 1px solid var(--border);
}
.how-to {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
  margin-top: 2rem;
}
@media (max-width: 700px) { .how-to { grid-template-columns: 1fr; } }
.how-step {
  background: var(--lg-fill);
  -webkit-backdrop-filter: var(--lg-blur);
  backdrop-filter: var(--lg-blur);
  border: 1px solid var(--lg-edge);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: var(--lg-rim), var(--lg-shadow);
}
.how-step h3 { font-size: .95rem; margin-bottom: .5rem; font-weight: 600; }
.how-step p { font-size: .85rem; color: var(--ink-secondary); line-height: 1.55; }
.policy-block {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--lg-fill);
  -webkit-backdrop-filter: var(--lg-blur);
  backdrop-filter: var(--lg-blur);
  border: 1px solid var(--lg-edge);
  border-radius: 24px;
  box-shadow: var(--lg-rim), var(--lg-shadow);
}
.policy-block h2 { font-size: 1.25rem; margin-bottom: 1rem; font-weight: 600; }
.policy-block h3 { font-size: .95rem; margin: 1.25rem 0 .4rem; font-weight: 600; }
.policy-block p, .policy-block li { font-size: .88rem; color: var(--ink-secondary); line-height: 1.6; margin-bottom: .5rem; }
.policy-block ul { padding-left: 1.25rem; margin-bottom: 1rem; }
.policy-links { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.content-section { padding: 3rem max(1.25rem, 4vw); max-width: 800px; margin: 0 auto; }
.content-section h2 { font-size: 1.5rem; margin: 2rem 0 .75rem; font-weight: 600; letter-spacing: -0.02em; }
.content-section h3 { font-size: 1.1rem; margin: 1.5rem 0 .5rem; font-weight: 600; }
.content-section p { font-size: 1rem; color: var(--ink-secondary); line-height: 1.65; margin-bottom: 1rem; }
.content-section ul, .content-section ol { padding-left: 1.4rem; margin-bottom: 1rem; color: var(--ink-secondary); }
.content-section li { margin-bottom: .4rem; line-height: 1.55; }
.page-header {
  padding: calc(var(--nav-h) + 4rem) max(1.25rem, 4vw) 2rem;
  max-width: 800px; margin: 0 auto; text-align: center;
}
.page-header h1 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -0.03em; margin-bottom: .6rem; }
.page-header p { color: var(--ink-secondary); font-size: 1.1rem; }
.breadcrumb {
  font-size: .75rem; color: var(--ink-muted); margin-bottom: 1rem;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }


/* === FORCE DEMO IMAGES VISIBLE (Safari fix) === */
.demo-card {
  background: #ffffff !important;
  -webkit-backdrop-filter: none !important;
  backdrop-filter: none !important;
  overflow: hidden !important;
}
html[data-theme="dark"] .demo-card {
  background: #1c1c1e !important;
}
.demo-card img {
  width: 100% !important;
  height: auto !important;
  max-height: none !important;
  min-height: 200px !important;
  object-fit: contain !important;
  object-position: center center !important;
  display: block !important;
  background: #f5f5f7 !important;
  border: 0 !important;
  opacity: 1 !important;
  visibility: visible !important;
  position: relative !important;
  z-index: 2 !important;
}
html[data-theme="dark"] .demo-card img {
  background: #1c1c1e !important;
}
.demo-caption {
  position: relative;
  z-index: 2;
  background: #fff;
}
html[data-theme="dark"] .demo-caption {
  background: #1c1c1e;
}