:root {
      --accent: #0E5AA7;
      --accent-2: #1478D4;
      --accent-deep: #072F5F;
      --accent-soft: rgba(14, 90, 167, 0.08);
      --accent-glow: rgba(14, 90, 167, 0.35);

      --bg: #F7F8FB;
      --bg-elevated: #FFFFFF;
      --bg-subtle: #EEF1F6;
      --ink: #0A1220;
      --ink-2: #384558;
      --ink-3: #6B7890;
      --line: rgba(14, 24, 45, 0.08);
      --line-strong: rgba(14, 24, 45, 0.14);

      --radius: 20px;
      --radius-sm: 12px;
      --radius-lg: 28px;

      --shadow-sm: 0 1px 2px rgba(10, 18, 32, 0.04), 0 2px 8px rgba(10, 18, 32, 0.04);
      --shadow-md: 0 10px 30px -10px rgba(14, 90, 167, 0.15), 0 4px 12px rgba(10, 18, 32, 0.06);
      --shadow-lg: 0 30px 80px -30px rgba(14, 90, 167, 0.35), 0 10px 30px rgba(10, 18, 32, 0.08);

      --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
      --font-display: 'Fraunces', Georgia, serif;
      --font-mono: 'Geist Mono', ui-monospace, monospace;
    }

    [data-theme="dark"] {
      --bg: #07111F;
      --bg-elevated: #0E1A2E;
      --bg-subtle: #0A1526;
      --ink: #F2F5FA;
      --ink-2: #B6C2D6;
      --ink-3: #7B8AA6;
      --line: rgba(255, 255, 255, 0.08);
      --line-strong: rgba(255, 255, 255, 0.14);
      --accent-soft: rgba(20, 120, 212, 0.14);

      --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.3);
      --shadow-lg: 0 30px 80px -30px rgba(0, 0, 0, 0.7), 0 10px 30px rgba(0, 0, 0, 0.3);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--ink);
      -webkit-font-smoothing: antialiased;
      line-height: 1.5;
      overflow-x: hidden;
      transition: background 0.4s ease, color 0.4s ease;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }

    @media (max-width: 640px) {
      .container {
        padding: 0 20px;
      }
    }

    /* ========== NAV ========== */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      padding: 14px 0;
      backdrop-filter: saturate(180%) blur(20px);
      -webkit-backdrop-filter: saturate(180%) blur(20px);
      background: color-mix(in oklab, var(--bg) 75%, transparent);
      border-bottom: 1px solid var(--line);
      transition: background 0.3s ease, border-color 0.3s ease;
    }

    .nav.scrolled {
      /* always styled as scrolled */
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
      font-size: 18px;
      letter-spacing: -0.01em;
      text-decoration: none;
      color: var(--ink);
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
      display: grid;
      place-items: center;
      color: white;
      font-weight: 700;
      font-size: 15px;
      box-shadow: 0 4px 14px var(--accent-glow);
      position: relative;
      overflow: hidden;
    }

    .logo-mark::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.35), transparent 60%);
    }

    .logo-mark span {
      position: relative;
      z-index: 1;
    }

    .nav-links {
      display: flex;
      gap: 4px;
      list-style: none;
    }

    .nav-links a {
      color: var(--ink-2);
      text-decoration: none;
      padding: 8px 14px;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 500;
      transition: all 0.2s;
    }

    .nav-links a:hover {
      color: var(--ink);
      background: var(--accent-soft);
    }

    .nav-actions {
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .lang-toggle {
      display: flex;
      padding: 3px;
      background: var(--bg-subtle);
      border: 1px solid var(--line);
      border-radius: 999px;
      font-size: 12px;
      font-family: var(--font-mono);
      font-weight: 500;
    }

    .lang-toggle button {
      border: none;
      background: none;
      padding: 5px 10px;
      border-radius: 999px;
      cursor: pointer;
      color: var(--ink-3);
      transition: all 0.2s;
    }

    .lang-toggle button.active {
      background: var(--ink);
      color: var(--bg-elevated);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 18px;
      border-radius: 999px;
      font-weight: 500;
      font-size: 14px;
      text-decoration: none;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s;
      font-family: inherit;
    }

    .btn-primary {
      background: var(--ink);
      color: var(--bg-elevated);
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }

    .btn-ghost {
      background: transparent;
      color: var(--ink);
      border-color: var(--line-strong);
    }

    .btn-ghost:hover {
      background: var(--accent-soft);
      border-color: var(--accent);
      color: var(--accent);
    }

    .mobile-menu-btn {
      display: none;
    }

    @media (max-width: 880px) {
      .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        left: 32px;
        right: 32px;
        flex-direction: column;
        gap: 6px;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: 20px;
        background: var(--bg-elevated);
        box-shadow: var(--shadow-lg);
      }

      .nav.nav-open .nav-links {
        display: flex;
      }

      .nav-links li {
        width: 100%;
      }

      .nav-links a {
        display: block;
        width: 100%;
      }

      .mobile-menu-btn {
        display: grid;
        place-items: center;
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: transparent;
        border: 1px solid var(--line-strong);
        cursor: pointer;
        color: var(--ink);
      }

      .nav-actions .btn-primary {
        display: none;
      }
    }

    /* ========== HERO ========== */
    .hero {
      padding: 140px 0 60px;
      position: relative;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 0;
    }

    .hero-blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.55;
      animation: float 18s ease-in-out infinite;
    }

    .hero-blob.b1 {
      top: -100px;
      left: -100px;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    }

    .hero-blob.b2 {
      top: 200px;
      right: -150px;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
      animation-delay: -6s;
    }

    .hero-blob.b3 {
      bottom: -200px;
      left: 30%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, var(--accent-deep) 0%, transparent 70%);
      animation-delay: -12s;
      opacity: 0.3;
    }

    [data-theme="dark"] .hero-blob {
      opacity: 0.45;
    }

    @keyframes float {

      0%,
      100% {
        transform: translate(0, 0) scale(1);
      }

      33% {
        transform: translate(30px, -40px) scale(1.1);
      }

      66% {
        transform: translate(-20px, 30px) scale(0.95);
      }
    }

    .hero-inner {
      position: relative;
      z-index: 1;
    }

    /* TYPOGRAPHIC hero variant */
    .hero-type .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: 999px;
      background: var(--bg-elevated);
      border: 1px solid var(--line);
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--ink-2);
      margin-bottom: 28px;
      box-shadow: var(--shadow-sm);
    }

    .hero-eyebrow .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
      animation: pulse-dot 2s infinite;
    }

    @keyframes pulse-dot {

      0%,
      100% {
        box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
      }

      50% {
        box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
      }
    }

    .hero-title {
      font-family: var(--font-display);
      font-weight: 500;
      font-size: clamp(56px, 10vw, 90px);
      line-height: 0.92;
      letter-spacing: -0.04em;
      margin-bottom: 32px;
      max-width: 12ch;
    }

    .hero-title .accent {
      color: var(--accent);
      font-style: italic;
      font-weight: 400;
      position: relative;
      display: inline-block;
    }

    .hero-title .plus {
      color: var(--accent);
      display: inline-block;
      transform: translateY(-0.1em);
      font-weight: 600;
    }

    .hero-sub {
      font-size: clamp(17px, 1.5vw, 20px);
      color: var(--ink-2);
      max-width: 52ch;
      margin-bottom: 36px;
      line-height: 1.55;
    }

    .hero-cta {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      align-items: center;
    }

    .store-btn {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 10px 20px 10px 16px;
      border-radius: 14px;
      background: var(--ink);
      color: var(--bg-elevated);
      text-decoration: none;
      transition: all 0.2s;
      border: 1px solid var(--ink);
    }

    .store-btn:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .store-btn svg {
      width: 24px;
      height: 24px;
      flex-shrink: 0;
    }

    .store-btn-label {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      line-height: 1.1;
    }

    .store-btn-label small {
      font-size: 10px;
      opacity: 0.75;
      font-weight: 400;
    }

    .store-btn-label b {
      font-size: 15px;
      font-weight: 600;
    }

    .hero-phones {
      position: relative;
      margin-top: 20px;
      height: 620px;
      display: flex;
      justify-content: center;
      align-items: center;
      perspective: 1500px;
      overflow: visible;
    }

    .hero-phones-scaler {
      position: relative;
      width: 1100px;
      height: 560px;
      display: flex;
      justify-content: center;
      align-items: center;
      transform-origin: center center;
      transform: scale(var(--hp-scale, 1));
      transition: transform 0.3s ease;
    }

    @media (max-width: 720px) {
      .hero-phones {
        height: 480px;
      }

      .hero-phones-scaler {
        height: 500px;
      }
    }

    @media (max-width: 480px) {
      .hero-phones {
        height: 380px;
      }
    }

    .phone {
      position: absolute;
      width: 240px;
      height: 500px;
      border-radius: 42px;
      background: linear-gradient(145deg, #1a1a1a 0%, #0a0a0a 100%);
      padding: 10px;
      box-shadow:
        0 40px 80px -30px rgba(10, 18, 32, 0.4),
        0 20px 40px -20px var(--accent-glow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.08);
      transform-style: preserve-3d;
      transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
      will-change: transform;
    }

    .phone-screen {
      width: 100%;
      height: 100%;
      border-radius: 32px;
      overflow: hidden;
      position: relative;
      background: linear-gradient(160deg, var(--accent-deep) 0%, var(--accent) 45%, var(--accent-2) 100%);
    }

    .phone-shot {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      -webkit-user-drag: none;
      user-select: none;
      -webkit-touch-callout: none;
      pointer-events: auto;
    }

    .phone-notch {
      position: absolute;
      top: 17px;
      left: 50%;
      transform: translateX(-50%);
      width: 74px;
      height: 16px;
      background: #000;
      border-radius: 999px;
      z-index: 3;
    }

    .phone.p-center {
      transform: translateY(0) scale(1);
      z-index: 3;
    }

    .phone.p-left {
      transform: translateX(-210px) translateY(30px) rotate(-8deg) scale(0.85);
      z-index: 2;
      opacity: 0.94;
    }

    .phone.p-right {
      transform: translateX(210px) translateY(30px) rotate(8deg) scale(0.85);
      z-index: 2;
      opacity: 0.94;
    }

    .phone.p-far-left {
      transform: translateX(-400px) translateY(70px) rotate(-14deg) scale(0.7);
      z-index: 1;
      opacity: 0.7;
    }

    .phone.p-far-right {
      transform: translateX(400px) translateY(70px) rotate(14deg) scale(0.7);
      z-index: 1;
      opacity: 0.7;
    }

    /* Floating badges */
    .hero-badge {
      position: absolute;
      background: var(--bg-elevated);
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 10px 14px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 500;
      z-index: 5;
      animation: hover-bob 6s ease-in-out infinite;
    }

    .hero-badge.b1 {
      top: 80px;
      right: 8%;
    }

    .hero-badge.b2 {
      bottom: 60px;
      left: 6%;
      animation-delay: -3s;
    }

    .badge-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--accent-soft);
      color: var(--accent);
      display: grid;
      place-items: center;
    }

    .badge-icon svg {
      width: 18px;
      height: 18px;
    }

    .badge-meta {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .badge-meta small {
      font-size: 11px;
      color: var(--ink-3);
      font-family: var(--font-mono);
    }

    @keyframes hover-bob {

      0%,
      100% {
        transform: translateY(0);
      }

      50% {
        transform: translateY(-12px);
      }
    }

    @media (max-width: 700px) {
      .hero-badge {
        display: none;
      }
    }

    /* Mock app UI inside phones */
    .mock-app {
      padding: 56px 16px 16px;
      color: white;
      height: 100%;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .mock-status {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 11px;
      font-weight: 600;
      position: absolute;
      top: 18px;
      left: 22px;
      right: 22px;
      z-index: 2;
    }

    .mock-status-right {
      display: flex;
      gap: 6px;
      align-items: center;
    }

    .mock-status-right svg {
      width: 14px;
      height: 10px;
    }

    .mock-greet {
      font-size: 11px;
      opacity: 0.8;
      font-family: var(--font-mono);
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .mock-name {
      font-family: var(--font-display);
      font-size: 24px;
      font-weight: 500;
      letter-spacing: -0.02em;
      margin-bottom: 4px;
    }

    .mock-card {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 16px;
      padding: 12px;
    }

    .mock-card-label {
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      opacity: 0.75;
      font-family: var(--font-mono);
      margin-bottom: 8px;
    }

    .mock-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }

    .mock-tile {
      aspect-ratio: 1;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 10px;
      display: grid;
      place-items: center;
      font-size: 10px;
      padding: 8px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mock-tile-icon {
      width: 22px;
      height: 22px;
      border-radius: 6px;
      background: rgba(255, 255, 255, 0.2);
      margin-bottom: 6px;
    }

    /* Phone variant: QR / Carnet */
    .mock-carnet {
      padding: 56px 20px 20px;
      height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: white;
      gap: 14px;
    }

    .mock-avatar {
      width: 72px;
      height: 72px;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
      border: 2px solid rgba(255, 255, 255, 0.3);
    }

    .mock-qr {
      width: 140px;
      height: 140px;
      background: white;
      border-radius: 16px;
      padding: 10px;
      display: grid;
      grid-template-columns: repeat(10, 1fr);
      gap: 2px;
    }

    .mock-qr div {
      background: var(--accent-deep);
      border-radius: 1px;
    }

    .mock-qr div.empty {
      background: transparent;
    }

    /* Phone variant: Calendar */
    .mock-calendar {
      padding: 56px 16px 16px;
      color: white;
    }

    .mock-cal-week {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 4px;
      margin-bottom: 12px;
    }

    .mock-cal-day {
      aspect-ratio: 1;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.08);
      display: grid;
      place-items: center;
      font-size: 10px;
      font-weight: 500;
    }

    .mock-cal-day.active {
      background: white;
      color: var(--accent-deep);
    }

    .mock-event {
      background: rgba(255, 255, 255, 0.12);
      border-left: 3px solid white;
      border-radius: 8px;
      padding: 8px 10px;
      margin-bottom: 6px;
      font-size: 10px;
    }

    .mock-event-title {
      font-weight: 600;
      margin-bottom: 2px;
    }

    .mock-event-time {
      opacity: 0.7;
      font-family: var(--font-mono);
      font-size: 9px;
    }

    /* ========== SECTIONS ========== */
    .section {
      padding: 120px 0;
      position: relative;
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 72px;
    }

    .section-eyebrow {
      font-family: var(--font-mono);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      color: var(--accent);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .section-eyebrow::before {
      content: '';
      width: 24px;
      height: 1px;
      background: var(--accent);
    }

    .section-title {
      font-family: var(--font-display);
      font-weight: 500;
      font-size: clamp(36px, 5vw, 64px);
      line-height: 1.05;
      letter-spacing: -0.025em;
      margin-bottom: 20px;
    }

    .section-title em {
      color: var(--accent);
      font-style: italic;
      font-weight: 400;
    }

    .section-sub {
      font-size: 18px;
      color: var(--ink-2);
      max-width: 60ch;
    }

    /* ========== ABOUT ========== */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    @media (max-width: 900px) {
      .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
      }
    }

    .about-visual {
      aspect-ratio: 4/5;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(5, 16, 36, 0.12) 0%, rgba(5, 16, 36, 0.58) 100%),
        url('../img/utpl_0.jpg') center/cover no-repeat;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .about-visual::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        linear-gradient(135deg, rgba(5, 16, 36, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12), transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08), transparent 50%);
    }

    .about-visual-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    .about-stats {
      position: absolute;
      bottom: 32px;
      left: 32px;
      right: 32px;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 8px;
      z-index: 2;
    }

    .about-stat {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: var(--radius-sm);
      padding: 16px;
      color: white;
    }

    .about-stat .num {
      font-family: var(--font-display);
      font-size: 36px;
      font-weight: 500;
      line-height: 1;
      letter-spacing: -0.02em;
      margin-bottom: 6px;
    }

    .about-stat .lbl {
      font-size: 11px;
      font-family: var(--font-mono);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      opacity: 0.85;
    }

    .about-logo-mark {
      position: absolute;
      top: 32px;
      right: 32px;
      font-family: var(--font-display);
      font-size: 180px;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.15);
      line-height: 0.8;
      letter-spacing: -0.05em;
    }

    .about-copy p {
      font-size: 18px;
      color: var(--ink-2);
      margin-bottom: 20px;
      line-height: 1.6;
    }

    .about-copy p strong {
      color: var(--ink);
      font-weight: 600;
    }

    /* ========== PILLARS ========== */
    .pillars {
      background: var(--bg-subtle);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      border-top: 1px solid var(--line);
      border-left: 1px solid var(--line);
      margin-top: 48px;
      background: var(--bg-elevated);
      border-radius: var(--radius);
      overflow: hidden;
    }

    @media (max-width: 900px) {
      .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .pillars-grid {
        grid-template-columns: 1fr;
      }
    }

    .pillar {
      padding: 40px 32px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      position: relative;
      transition: background 0.3s;
    }

    .pillar:hover {
      background: var(--accent-soft);
    }

    .pillar-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--accent-soft);
      color: var(--accent);
      display: grid;
      place-items: center;
      margin-bottom: 24px;
    }

    .pillar-icon svg {
      width: 22px;
      height: 22px;
    }

    .pillar h3 {
      font-size: 24px;
      font-weight: 500;
      letter-spacing: -0.015em;
      margin-bottom: 8px;
    }

    .pillar p {
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.55;
    }

    .pillar-num {
      position: absolute;
      top: 24px;
      right: 24px;
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--ink-3);
    }

    /* ========== FEATURES (GRID + FILTERS) ========== */
    .features-filters {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      margin-bottom: 40px;
      padding: 6px;
      background: var(--bg-subtle);
      border: 1px solid var(--line);
      border-radius: 999px;
      width: fit-content;
    }

    .filter-btn {
      padding: 8px 16px;
      border-radius: 999px;
      border: none;
      background: transparent;
      font-family: inherit;
      font-size: 13px;
      font-weight: 500;
      color: var(--ink-2);
      cursor: pointer;
      transition: all 0.2s;
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .filter-btn .count {
      font-family: var(--font-mono);
      font-size: 10px;
      opacity: 0.6;
    }

    .filter-btn:hover {
      color: var(--ink);
    }

    .filter-btn.active {
      background: var(--ink);
      color: var(--bg-elevated);
      box-shadow: var(--shadow-sm);
    }

    .features-search {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 14px;
      background: var(--bg-subtle);
      border: 1px solid var(--line);
      border-radius: 999px;
      min-width: 220px;
    }

    .features-search input {
      border: none;
      background: transparent;
      font-family: inherit;
      font-size: 13px;
      outline: none;
      width: 100%;
      color: var(--ink);
    }

    .features-search svg {
      width: 16px;
      height: 16px;
      color: var(--ink-3);
      flex-shrink: 0;
    }

    .features-bar {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      align-items: center;
      margin-bottom: 40px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 16px;
    }

    .feature-card {
      background: var(--bg-elevated);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
      transition: all 0.25s;
      overflow: hidden;
      cursor: default;
    }

    .feature-card:hover {
      transform: translateY(-2px);
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }

    .feature-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 100% 0%, var(--accent-soft), transparent 60%);
      opacity: 0;
      transition: opacity 0.3s;
      pointer-events: none;
    }

    .feature-card:hover::before {
      opacity: 1;
    }

    .feature-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--accent-soft);
      color: var(--accent);
      display: grid;
      place-items: center;
      margin-bottom: 16px;
      transition: all 0.2s;
    }

    .feature-icon svg {
      width: 20px;
      height: 20px;
    }

    .feature-card:hover .feature-icon {
      background: var(--accent);
      color: white;
    }

    .feature-card h4 {
      font-size: 16px;
      font-weight: 600;
      letter-spacing: -0.01em;
      margin-bottom: 8px;
    }

    .feature-card p {
      font-size: 13.5px;
      color: var(--ink-2);
      line-height: 1.5;
    }

    .feature-tag {
      position: absolute;
      top: 24px;
      right: 24px;
      font-family: var(--font-mono);
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--ink-3);
      padding: 3px 8px;
      border: 1px solid var(--line);
      border-radius: 999px;
    }

    .features-empty {
      grid-column: 1/-1;
      text-align: center;
      padding: 60px 20px;
      color: var(--ink-3);
      font-family: var(--font-mono);
      font-size: 13px;
    }

    /* ========== SCREENSHOTS: Rotating 3D Phone ========== */
    .screens {
      background: linear-gradient(180deg, var(--bg) 0%, var(--bg-subtle) 100%);
      overflow: hidden;
    }

    .screens-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    @media (max-width: 900px) {
      .screens-wrap {
        grid-template-columns: 1fr;
        gap: 60px;
      }
    }

    .screens-3d-stage {
      height: 640px;
      position: relative;
      display: grid;
      place-items: center;
    }

    .screens-3d-container {
      position: relative;
      width: 280px;
      height: 580px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .screens-3d-phone {
      position: relative;
      width: 280px;
      height: 580px;
      border-radius: 44px;
      background: linear-gradient(145deg, #1a1a1a 0%, #0a0a0a 100%);
      padding: 10px;
      box-shadow:
        0 50px 100px -40px rgba(10, 18, 32, 0.5),
        0 30px 60px -30px var(--accent-glow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.08);
    }

    .screens-3d-face {
      position: relative;
      width: 100%;
      height: 100%;
      border-radius: 34px;
      overflow: hidden;
      background: var(--bg-subtle);
    }

    .preview-shot {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      opacity: 1;
      -webkit-user-drag: none;
      user-select: none;
      -webkit-touch-callout: none;
    }

    .screens-picker {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .screen-item {
      display: grid;
      grid-template-columns: 32px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px 20px;
      border-radius: var(--radius-sm);
      background: transparent;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s;
      text-align: left;
      width: 100%;
      font-family: inherit;
      color: var(--ink);
    }

    .screen-item:hover {
      background: var(--bg-elevated);
      border-color: var(--line);
    }

    .screen-item.active {
      background: var(--bg-elevated);
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }

    .screen-item .num {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--ink-3);
      padding: 4px 6px;
      border: 1px solid var(--line);
      border-radius: 6px;
      text-align: center;
    }

    .screen-item.active .num {
      background: var(--accent);
      color: white;
      border-color: var(--accent);
    }

    .screen-item .title {
      font-weight: 500;
      font-size: 15px;
      margin-bottom: 2px;
    }

    .screen-item .desc {
      font-size: 12.5px;
      color: var(--ink-3);
    }

    .screen-item .arrow {
      opacity: 0;
      transform: translateX(-6px);
      transition: all 0.25s;
      color: var(--accent);
    }

    .screen-item.active .arrow,
    .screen-item:hover .arrow {
      opacity: 1;
      transform: translateX(0);
    }

    /* ========== CARNET STEPPER ========== */
    .carnet {
      background: linear-gradient(160deg, var(--accent-deep) 0%, var(--accent) 100%);
      color: white;
      position: relative;
      overflow: hidden;
    }

    .carnet::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.18), transparent 40%),
        radial-gradient(circle at 85% 80%, rgba(255, 255, 255, 0.08), transparent 50%);
      pointer-events: none;
    }

    .carnet-grid-bg {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    }

    .carnet .section-eyebrow {
      color: rgba(255, 255, 255, 0.7);
    }

    .carnet .section-eyebrow::before {
      background: rgba(255, 255, 255, 0.7);
    }

    .carnet .section-title {
      color: white;
    }

    .carnet .section-title em {
      color: #FFD864;
    }

    .carnet .section-sub {
      color: rgba(255, 255, 255, 0.85);
    }

    .carnet-inner {
      position: relative;
      z-index: 1;
    }

    .carnet-wrap {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 80px;
      align-items: start;
      margin-top: 60px;
    }

    @media (max-width: 900px) {
      .carnet-wrap {
        grid-template-columns: 1fr;
        gap: 48px;
      }
    }

    .step {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 20px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      cursor: pointer;
      transition: all 0.3s;
      align-items: start;
    }

    .step:last-child {
      border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }

    .step-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 1.5px solid rgba(255, 255, 255, 0.35);
      display: grid;
      place-items: center;
      font-family: var(--font-display);
      font-size: 20px;
      font-weight: 500;
      transition: all 0.3s;
    }

    .step.active .step-num {
      background: white;
      color: var(--accent-deep);
      border-color: white;
      transform: scale(1.1);
    }

    .step h4 {
      font-size: 22px;
      font-weight: 500;
      letter-spacing: -0.015em;
      margin-bottom: 6px;
      opacity: 0.7;
      transition: opacity 0.3s;
    }

    .step.active h4 {
      opacity: 1;
    }

    .step p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      line-height: 1.55;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, margin-top 0.4s ease;
    }

    .step.active p {
      max-height: 100px;
      margin-top: 4px;
    }

    .carnet-phone {
      position: sticky;
      top: 100px;
      justify-self: end;
      width: 280px;
      height: 580px;
      border-radius: 44px;
      background: linear-gradient(145deg, #1a1a1a 0%, #0a0a0a 100%);
      padding: 10px;
      box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.5);
    }

    .carnet-phone-screen {
      width: 100%;
      height: 100%;
      border-radius: 34px;
      background: linear-gradient(160deg, var(--accent-deep) 0%, var(--accent) 50%, var(--accent-2) 100%);
      position: relative;
      overflow: hidden;
      transition: opacity 0.3s;
    }

    /* ========== FAQ ========== */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--line);
    }

    .faq-q {
      width: 100%;
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      background: none;
      border: none;
      cursor: pointer;
      font-family: inherit;
      font-size: 18px;
      font-weight: 500;
      color: var(--ink);
      text-align: left;
    }

    .faq-q .plus-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--accent-soft);
      color: var(--accent);
      display: grid;
      place-items: center;
      flex-shrink: 0;
      transition: transform 0.3s, background 0.3s;
    }

    .faq-item.open .faq-q .plus-icon {
      transform: rotate(45deg);
      background: var(--accent);
      color: white;
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      color: var(--ink-2);
      font-size: 15.5px;
      line-height: 1.6;
    }

    .faq-a-inner {
      padding-bottom: 24px;
      padding-right: 48px;
    }

    .faq-item.open .faq-a {
      max-height: 400px;
    }

    /* ========== CONTACT / CTA ========== */
    .cta {
      padding: 120px 0;
    }

    .cta-card {
      background: var(--ink);
      color: var(--bg-elevated);
      border-radius: var(--radius-lg);
      padding: 80px 64px;
      position: relative;
      overflow: hidden;
    }

    [data-theme="dark"] .cta-card {
      background: var(--bg-elevated);
      color: var(--ink);
      border: 1px solid var(--line);
    }

    .cta-card::before {
      content: '';
      position: absolute;
      top: -200px;
      right: -200px;
      width: 500px;
      height: 500px;
      border-radius: 50%;
      background: radial-gradient(circle, var(--accent-2) 0%, transparent 60%);
      opacity: 0.5;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 48px;
      align-items: center;
    }

    @media (max-width: 800px) {
      .cta-card {
        padding: 56px 32px;
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }
    }

    .cta h2 {
      font-family: var(--font-display);
      font-size: clamp(32px, 5vw, 56px);
      font-weight: 500;
      letter-spacing: -0.025em;
      line-height: 1.05;
      margin-bottom: 16px;
      max-width: 16ch;
    }

    .cta p {
      font-size: 17px;
      opacity: 0.7;
      max-width: 44ch;
    }

    /* Contact info grid */
    .contact-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 80px;
    }

    @media (max-width: 800px) {
      .contact-grid {
        grid-template-columns: 1fr;
      }
    }

    .contact-card {
      padding: 32px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--bg-elevated);
    }

    .contact-card .lbl {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--ink-3);
      margin-bottom: 14px;
    }

    .contact-card .val {
      font-size: 22px;
      font-weight: 500;
      letter-spacing: -0.015em;
    }

    .contact-card a {
      color: var(--ink);
      text-decoration: none;
    }

    .contact-card a:hover {
      color: var(--accent);
    }

    /* ========== CHANGELOG / VERSION BANNER ========== */
    .version-banner {
      position: fixed;
      bottom: 24px;
      left: 50%;
      transform: translateX(-50%) translateY(120%);
      z-index: 90;
      background: var(--bg-elevated);
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 10px 8px 10px 20px;
      display: flex;
      align-items: center;
      gap: 16px;
      box-shadow: var(--shadow-lg);
      transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
      max-width: calc(100vw - 32px);
    }

    .version-banner.visible {
      transform: translateX(-50%) translateY(0);
    }

    .version-banner-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
      flex-shrink: 0;
    }

    .version-banner-text {
      font-size: 13.5px;
      font-weight: 500;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .version-banner-text .v {
      font-family: var(--font-mono);
      color: var(--ink-3);
      margin-left: 6px;
      font-size: 12px;
    }

    .version-banner-btn {
      padding: 7px 14px;
      border-radius: 999px;
      background: var(--accent);
      color: white;
      font-size: 12px;
      font-weight: 500;
      border: none;
      cursor: pointer;
      flex-shrink: 0;
    }

    .version-banner-close {
      background: none;
      border: none;
      cursor: pointer;
      color: var(--ink-3);
      padding: 4px;
      display: grid;
      place-items: center;
    }

    /* ========== FOOTER ========== */
    .footer {
      padding: 60px 0 32px;
      border-top: 1px solid var(--line);
      background: var(--bg-subtle);
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }

    @media (max-width: 800px) {
      .footer-inner {
        grid-template-columns: 1fr 1fr;
      }
    }

    .footer h5 {
      font-size: 12px;
      font-family: var(--font-mono);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--ink-3);
      margin-bottom: 16px;
      font-weight: 500;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: var(--ink-2);
      text-decoration: none;
      font-size: 14px;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: var(--accent);
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.6;
      max-width: 42ch;
      margin-top: 12px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 24px;
      border-top: 1px solid var(--line);
      font-size: 12.5px;
      color: var(--ink-3);
      font-family: var(--font-mono);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* ========== TWEAKS PANEL ========== */
    .tweaks-panel {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 200;
      background: var(--bg-elevated);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 18px;
      width: 280px;
      box-shadow: var(--shadow-lg);
      display: none;
    }

    .tweaks-panel.visible {
      display: block;
    }

    .tweaks-panel h4 {
      font-size: 11px;
      font-family: var(--font-mono);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--ink-3);
      margin-bottom: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .tweaks-group {
      margin-bottom: 18px;
    }

    .tweaks-group:last-child {
      margin-bottom: 0;
    }

    .tweaks-label {
      font-size: 12px;
      color: var(--ink-2);
      margin-bottom: 8px;
      display: block;
      font-weight: 500;
    }

    .tweaks-swatches {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .tweaks-swatch {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      border: 2px solid var(--line);
      cursor: pointer;
      transition: transform 0.15s;
      position: relative;
    }

    .tweaks-swatch:hover {
      transform: scale(1.1);
    }

    .tweaks-swatch.active {
      border-color: var(--ink);
      box-shadow: 0 0 0 2px var(--bg-elevated), 0 0 0 4px var(--ink);
    }

    .tweaks-seg {
      display: flex;
      gap: 4px;
      padding: 3px;
      background: var(--bg-subtle);
      border-radius: 10px;
    }

    .tweaks-seg button {
      flex: 1;
      padding: 7px 10px;
      border: none;
      background: transparent;
      font-family: inherit;
      font-size: 12px;
      font-weight: 500;
      color: var(--ink-2);
      border-radius: 7px;
      cursor: pointer;
    }

    .tweaks-seg button.active {
      background: var(--bg-elevated);
      color: var(--ink);
      box-shadow: var(--shadow-sm);
    }

    /* ========== Animations & Utilities ========== */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 900px) {
      .section {
        padding: 96px 0;
      }

      .section-head {
        margin-bottom: 56px;
      }

      .hero {
        padding: 128px 0 48px;
      }

      .hero-title {
        max-width: 10ch;
      }

      .features-bar {
        align-items: stretch;
      }

      .features-filters,
      .features-search {
        width: 100%;
      }

      .features-search {
        margin-left: 0;
        min-width: 0;
      }

      .screens-3d-stage,
      .carnet-phone {
        justify-self: center;
      }

      .carnet-phone {
        position: relative;
        top: auto;
      }

      .contact-grid {
        margin-top: 56px;
      }
    }

    @media (max-width: 640px) {
      .nav {
        padding: 10px 0;
      }

      .nav-inner {
        gap: 12px;
      }

      .logo {
        font-size: 16px;
      }

      .nav-actions {
        gap: 8px;
      }

      .lang-toggle button {
        padding: 5px 8px;
      }

      .btn,
      .store-btn {
        width: 100%;
        justify-content: center;
      }

      .hero {
        padding: 116px 0 40px;
      }

      .hero-title {
        font-size: clamp(40px, 13vw, 72px);
        max-width: 100%;
        margin-bottom: 24px;
      }

      .hero-sub {
        font-size: 16px;
        margin-bottom: 28px;
      }

      .hero-cta {
        gap: 10px;
      }

      .hero-phones {
        margin-top: 56px;
      }

      .section {
        padding: 80px 0;
      }

      .section-title {
        font-size: clamp(30px, 9vw, 44px);
      }

      .section-sub,
      .about-copy p {
        font-size: 16px;
      }

      .about-stats {
        left: 20px;
        right: 20px;
        bottom: 20px;
        grid-template-columns: 1fr;
      }

      .pillars-grid {
        margin-top: 32px;
      }

      .pillar {
        padding: 28px 24px;
      }

      .features-filters {
        border-radius: 20px;
        padding: 8px;
      }

      .filter-btn {
        flex: 1 1 calc(50% - 6px);
        justify-content: center;
      }

      .features-grid {
        grid-template-columns: 1fr;
      }

      .screens-wrap,
      .carnet-wrap,
      .cta-inner,
      .footer-inner {
        gap: 32px;
      }

      .screens-3d-stage {
        height: 520px;
      }

      .screens-3d-container,
      .screens-3d-phone,
      .carnet-phone {
        width: min(280px, 100%);
      }

      .screens-3d-container,
      .screens-3d-phone,
      .carnet-phone {
        height: 560px;
      }

      .screen-item {
        grid-template-columns: 32px 1fr;
        padding: 16px 18px;
      }

      .screen-item .arrow {
        display: none;
      }

      .step {
        grid-template-columns: 44px 1fr;
        gap: 16px;
        padding: 16px 0;
      }

      .step h4 {
        font-size: 18px;
      }

      .cta-card {
        padding: 40px 24px;
      }

      .cta h2 {
        max-width: 100%;
      }

      .footer-inner {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 16px;
      }

      .nav-links {
        left: 16px;
        right: 16px;
      }

      .hero-eyebrow {
        width: 100%;
        justify-content: center;
        text-align: center;
      }

      .hero-phones {
        height: 320px;
      }

      .hero-phones-scaler {
        height: 420px;
      }

      .features-filters {
        width: 100%;
      }

      .filter-btn {
        flex-basis: 100%;
      }

      .screens-3d-stage {
        height: 460px;
      }

      .screens-3d-container,
      .screens-3d-phone,
      .carnet-phone {
        width: min(240px, 100%);
        height: 500px;
      }

      .contact-card {
        padding: 24px;
      }

      .version-banner {
        left: 16px;
        right: 16px;
        transform: translateY(120%);
        max-width: none;
      }

      .version-banner.visible {
        transform: translateY(0);
      }
    }

    @media (prefers-reduced-motion: reduce) {

      .hero-blob,
      .hero-badge,
      .phone {
        animation: none;
      }

      * {
        transition: none !important;
        animation-duration: 0.01ms !important;
      }
    }