:root {
      --bg: #0a0a0f;
      --bg-alt: #101018;
      --card: #15151f;
      --border: #24243a;
      --text: #e8e8f0;
      --muted: #9a9ab0;
      --accent: #7c5cff;
      --accent2: #00e5a0;
      --accent-deep: #5a3de0;
      --btn-to: #5a3de0;
      --btn-fg: #ffffff;
      --radius: 14px;
    }

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

    html { scroll-behavior: smooth; overflow-x: clip; -webkit-text-size-adjust: 100%; }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      line-height: 1.6;
    }

    .container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
    .center { text-align: center; }
    .hidden { display: none !important; }

    .header {
      position: sticky;
      top: 0;
      z-index: 10;
      padding-top: env(safe-area-inset-top);
      background: rgba(10, 10, 15, 0.85);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 60px;
    }

    .logo {
      font-weight: 800;
      font-size: 20px;
      letter-spacing: 1px;
      color: var(--text);
      text-decoration: none;
    }

    .logo span {
      background-image: linear-gradient(120deg, var(--accent), var(--accent2), var(--accent));
      background-size: 200% auto;
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      animation: gradientShift 4s linear infinite;
    }

    .nav a {
      position: relative;
      color: var(--muted);
      text-decoration: none;
      margin-left: 22px;
      font-size: 15px;
      transition: color 0.2s;
    }

    .nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      height: 2px;
      width: 100%;
      background: linear-gradient(90deg, var(--accent), var(--accent2));
      transform: scaleX(0);
      transform-origin: right;
      transition: transform 0.3s ease;
    }

    .nav a:hover { color: var(--text); }
    .nav a:hover::after { transform: scaleX(1); transform-origin: left; }

    .btn {
      display: inline-block;
      position: relative;
      overflow: hidden;
      background: linear-gradient(135deg, var(--accent), var(--btn-to));
      color: var(--btn-fg);
      border: none;
      border-radius: var(--radius);
      padding: 12px 26px;
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      text-align: center;
      cursor: pointer;
      font-family: inherit;
      transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s, border-color 0.2s;
    }

    .btn::after {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: -75%;
      width: 55%;
      background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.38), transparent);
      transform: skewX(-20deg);
      transition: left 0.55s ease;
      pointer-events: none;
    }

    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(124, 92, 255, 0.35);
      box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 35%, transparent);
    }
    .btn:hover::after { left: 135%; }
    .btn:active { transform: translateY(0) scale(0.97); }
    .btn:focus-visible { outline: 2px solid var(--accent2); outline-offset: 3px; }

    .btn-sm { padding: 8px 18px; font-size: 14px; }
    .btn-lg { padding: 15px 32px; font-size: 17px; }
    .btn-block { display: block; width: 100%; margin-top: 12px; }

    .btn-ghost {
      background: transparent;
      border: 1px solid var(--border);
    }

    .btn-ghost:hover { border-color: var(--accent); box-shadow: none; }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 90px 0 70px;
      background:
        radial-gradient(ellipse 60% 50% at 20% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent),
        radial-gradient(ellipse 50% 40% at 80% 10%, color-mix(in srgb, var(--accent2) 10%, transparent), transparent);
    }

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

    .badges { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }

    .badge {
      background: var(--card);
      border: 1px solid var(--border);
      color: var(--muted);
      border-radius: 999px;
      padding: 5px 14px;
      font-size: 13px;
    }

    .hero h1 {
      font-size: clamp(34px, 6vw, 56px);
      line-height: 1.15;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .accent {
      background-image: linear-gradient(120deg, var(--accent) 0%, var(--accent2) 45%, var(--accent) 90%);
      background-size: 220% auto;
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      animation: gradientShift 5s linear infinite;
    }

    .hero-sub {
      color: var(--muted);
      font-size: 18px;
      max-width: 620px;
      margin-bottom: 32px;
    }

    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

    .section { padding: 70px 0; }

    .section-alt {
      background: var(--bg-alt);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .section h2 {
      font-size: clamp(26px, 4vw, 38px);
      font-weight: 800;
      margin-bottom: 12px;
    }

    .section-sub { color: var(--muted); margin-bottom: 36px; max-width: 640px; }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 18px;
      margin-top: 30px;
    }

    .card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      transition: border-color 0.2s, transform 0.2s, box-shadow 0.25s;
    }

    .card:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
      box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45), 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
    }

    .card h3 { font-size: 18px; margin-bottom: 12px; }

    .card ul { list-style: none; }

    .card li {
      color: var(--muted);
      font-size: 15px;
      padding: 4px 0 4px 18px;
      position: relative;
    }

    .card li::before {
      content: "▸";
      color: var(--accent2);
      position: absolute;
      left: 0;
    }

    .buy-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
      align-items: start;
    }

    .price-card, .info-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
    }

    .price-card {
      text-align: center;
      background: linear-gradient(var(--card), var(--card)) padding-box,
                  linear-gradient(130deg, var(--accent), var(--accent2), var(--accent)) border-box;
      border: 1px solid transparent;
      background-size: 100% 100%, 300% 300%;
      animation: borderShift 7s linear infinite;
      transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.7s ease, translate 0.7s ease;
    }

    .price-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 44px color-mix(in srgb, var(--accent) 28%, transparent);
    }

    .price { font-size: 46px; font-weight: 800; color: var(--accent2); }
    .price-alt { color: var(--muted); font-size: 14px; margin-bottom: 18px; }

    .price-list { list-style: none; text-align: left; margin-bottom: 8px; }

    .price-list li {
      padding: 7px 0 7px 26px;
      position: relative;
      color: var(--text);
      font-size: 15px;
    }

    .price-list li::before {
      content: "✓";
      color: var(--accent2);
      position: absolute;
      left: 0;
      font-weight: 700;
    }

    .info-card h3 { margin-bottom: 16px; font-size: 20px; }

    .steps { padding-left: 20px; margin-bottom: 8px; }

    .steps li { margin: 10px 0; color: var(--muted); font-size: 15px; }

    .code {
      color: var(--accent2);
      font-family: ui-monospace, monospace;
      font-size: 17px;
    }

    .btn-copy {
      background: var(--bg-alt);
      border: 1px solid var(--border);
      color: var(--text);
      border-radius: 8px;
      padding: 3px 10px;
      font-size: 13px;
      cursor: pointer;
      margin-left: 6px;
    }

    .btn-copy:hover { border-color: var(--accent2); }

    .status {
      margin-top: 14px;
      padding: 12px 16px;
      border-radius: 10px;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      font-size: 15px;
    }

    .status::before { content: "⏳ "; }
    .status-ok::before { content: ""; }
    .status-err { border-color: #ff4d6a; color: #ff8fa0; }
    .status-err::before { content: "⚠️ "; }

    .key-box {
      margin-top: 16px;
      padding: 18px;
      border-radius: 10px;
      background: rgba(0, 229, 160, 0.06);
      background: color-mix(in srgb, var(--accent2) 6%, transparent);
      border: 1px solid var(--accent2);
      text-align: center;
    }

    .key {
      font-family: ui-monospace, monospace;
      font-size: 24px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--accent2);
      margin: 12px 0;
      word-break: break-all;
    }

    .key-hint { color: var(--muted); font-size: 13px; margin-top: 12px; text-align: left; }

    .how { list-style: none; }

    .how li {
      display: flex;
      align-items: center;
      gap: 12px;
      margin: 12px 0;
      color: var(--muted);
      font-size: 15px;
    }

    .how span {
      flex: 0 0 28px;
      height: 28px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      color: #fff;
      font-weight: 700;
      font-size: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .note {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
    }

    .modal {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .modal-backdrop {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.72);
      backdrop-filter: blur(4px);
      animation: fadeIn 0.25s ease;
    }

    .modal-card {
      position: relative;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 28px;
      width: min(94vw, 470px);
      max-height: 90vh;
      overflow-y: auto;
      animation: pop 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.25);
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
    }

    #modal-choose:not(.hidden),
    #modal-da:not(.hidden) {
      animation: fadeSlide 0.3s ease;
    }

    #modal-choose:not(.hidden) .pay-opt { animation: rise 0.45s backwards; }
    #modal-choose:not(.hidden) .pay-opt:nth-child(1) { animation-delay: 0.05s; }
    #modal-choose:not(.hidden) .pay-opt:nth-child(2) { animation-delay: 0.12s; }
    #modal-choose:not(.hidden) .pay-opt:nth-child(3) { animation-delay: 0.19s; }

    @keyframes pop {
      from { transform: scale(0.96); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }

    .modal-close {
      position: absolute;
      top: 12px;
      right: 14px;
      background: none;
      border: none;
      color: var(--muted);
      font-size: 19px;
      cursor: pointer;
      line-height: 1;
    }

    .modal-close:hover { color: var(--text); }

    .modal h3 { font-size: 21px; margin-bottom: 4px; }

    .pay-options {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 18px;
    }

    .pay-opt {
      display: block;
      width: 100%;
      text-align: left;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 14px 16px;
      color: var(--text);
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      transition: border-color 0.2s, transform 0.15s;
    }

    .pay-opt:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
      background: #16162a;
      box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
    }

    .pay-opt span {
      display: block;
      font-size: 13px;
      font-weight: 400;
      color: var(--muted);
      margin-top: 3px;
    }

    .back-link {
      background: none;
      border: none;
      color: var(--muted);
      cursor: pointer;
      font-size: 14px;
      margin-top: 16px;
      padding: 0;
    }

    .back-link:hover { color: var(--text); }

    #modal-da .steps { margin-top: 14px; }

    .hdr-right { display: flex; align-items: center; gap: 10px; }

    .hdr-auth { padding: 8px 16px; font-size: 14px; }

    .me-box { display: flex; align-items: center; gap: 8px; font-size: 14px; }

    .theme-swatches {
      display: flex;
      align-items: center;
      gap: 7px;
      padding: 0 4px;
    }

    .sw { width: 17px; height: 17px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.22); background: var(--sw, #fff); cursor: pointer; padding: 0; transition: transform 0.15s ease, box-shadow 0.15s ease; }

    .sw-mono { --sw: #e8e8f0; }
    .sw-violet { --sw: #7c5cff; }
    .sw-green { --sw: #00c58a; }
    .sw-blue { --sw: #3b9dff; }
    .sw-amber { --sw: #ff9f43; }
    .sw-crimson { --sw: #ff4d6a; }

    .sw:hover { transform: scale(1.18); }

    .sw:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }

    .sw.active {
      box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--sw), 0 0 10px var(--sw);
      transform: scale(1.1);
    }

    html[data-theme="mono"] .blob { opacity: 0.16; }
    html[data-theme="mono"] .b2 { display: none; }
    html[data-theme="mono"] .hero-grid { opacity: 0.45; }
    html[data-theme="mono"] .hero-fx::after { opacity: 0.4; }

    .me-login {
      color: var(--accent2);
      font-weight: 600;
      max-width: 140px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .btn-logout {
      background: none;
      border: 1px solid var(--border);
      color: var(--muted);
      border-radius: 8px;
      padding: 5px 10px;
      font-size: 13px;
      cursor: pointer;
      font-family: inherit;
    }

    .btn-logout:hover { border-color: #ff4d6a; color: #ff8fa0; }

    .hp {
      position: absolute !important;
      left: -9999px !important;
      top: -9999px !important;
      width: 1px !important;
      height: 1px !important;
      opacity: 0 !important;
      pointer-events: none !important;
    }

    #auth-modal .modal-close { display: none; }

    .auth-tabs { display: flex; gap: 8px; margin-bottom: 18px; }

    .auth-tab {
      flex: 1;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      color: var(--muted);
      border-radius: 10px;
      padding: 9px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      font-family: inherit;
      transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.15s;
    }

    .auth-tab:hover { transform: translateY(-1px); border-color: var(--accent); }

    .auth-tab.active {
      background: linear-gradient(135deg, var(--accent), var(--btn-to));
      border-color: transparent;
      color: var(--btn-fg);
    }

    .auth-form { display: flex; flex-direction: column; gap: 10px; }

    .field {
      width: 100%;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 11px 14px;
      color: var(--text);
      font-size: 15px;
      font-family: inherit;
      outline: none;
    }

    .field:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
    }

    .auth-form .btn-block { margin-top: 4px; }

    .auth-hint {
      margin-top: 14px;
      color: var(--muted);
      font-size: 12px;
      text-align: center;
    }

    .footer {
      padding: 26px 0;
      border-top: 1px solid var(--border);
      color: var(--muted);
      font-size: 13px;
      text-align: center;
    }

    /* ---------- animations & design ---------- */

    @keyframes rise {
      from { opacity: 0; transform: translateY(26px); }
      to { opacity: 1; transform: none; }
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    @keyframes fadeSlide {
      from { opacity: 0; transform: translateX(16px); }
      to { opacity: 1; transform: none; }
    }

    @keyframes gradientShift {
      to { background-position: 220% 50%; }
    }

    @keyframes blobFloat {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(46px, -34px) scale(1.12); }
      66% { transform: translate(-34px, 26px) scale(0.94); }
    }

    @keyframes pulseGlow {
      0%, 100% { box-shadow: 0 6px 22px color-mix(in srgb, var(--accent) 35%, transparent); }
      50% {
        box-shadow: 0 6px 34px color-mix(in srgb, var(--accent2) 40%, transparent),
                    0 0 0 7px color-mix(in srgb, var(--accent) 8%, transparent);
      }
    }

    @keyframes keyPop {
      0% { opacity: 0; transform: scale(0.9) translateY(10px); }
      60% { transform: scale(1.03); }
      100% { opacity: 1; transform: none; }
    }

    @keyframes blink {
      50% { opacity: 0.35; }
    }

    @keyframes borderShift {
      to { background-position: 0 0, 300% 0; }
    }

    .progress {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      z-index: 110;
      background: linear-gradient(90deg, var(--accent), var(--accent2));
      transform: scaleX(0);
      transform-origin: left;
      pointer-events: none;
    }

    .header { transition: background 0.3s, box-shadow 0.3s, border-color 0.3s; }

    .header.scrolled {
      background: rgba(8, 8, 14, 0.93);
      box-shadow: 0 10px 34px rgba(0, 0, 0, 0.5);
      border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
    }

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

    .blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(60px);
      opacity: 0.55;
      animation: blobFloat 14s ease-in-out infinite;
      will-change: transform;
    }

    .b1 {
      width: 480px;
      height: 480px;
      left: -130px;
      top: -170px;
      background: radial-gradient(circle, color-mix(in srgb, var(--accent) 55%, transparent), transparent 70%);
    }

    .b2 {
      width: 420px;
      height: 420px;
      right: -110px;
      top: -70px;
      background: radial-gradient(circle, color-mix(in srgb, var(--accent2) 35%, transparent), transparent 70%);
      animation-delay: -5s;
    }

    .b3 {
      width: 380px;
      height: 380px;
      left: 38%;
      bottom: -190px;
      background: radial-gradient(circle, color-mix(in srgb, var(--accent-deep) 45%, transparent), transparent 70%);
      animation-delay: -9s;
    }

    .hero-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--accent) 6%, transparent) 1px, transparent 1px);
      background-size: 44px 44px;
      -webkit-mask-image: radial-gradient(ellipse 70% 65% at 50% 35%, #000 25%, transparent 75%);
      mask-image: radial-gradient(ellipse 70% 65% at 50% 35%, #000 25%, transparent 75%);
    }

    .hero-fx::after {
      content: "";
      position: absolute;
      width: 540px;
      height: 540px;
      left: var(--hx, 50%);
      top: var(--hy, 40%);
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, color-mix(in srgb, var(--accent) 16%, transparent), transparent 65%);
      opacity: 0;
      transition: opacity 0.4s;
    }

    .hero-fx.lit::after { opacity: 1; }

    .badges { animation: rise 0.7s 0.05s both; }
    .hero h1 { animation: rise 0.8s 0.15s both; }
    .hero-sub { animation: rise 0.8s 0.3s both; }
    .hero-actions { animation: rise 0.8s 0.45s both; }

    .hero-actions .btn:first-child {
      animation: pulseGlow 3s ease-in-out infinite, rise 0.8s 0.45s backwards;
    }

    .hero-stats {
      display: flex;
      gap: 34px;
      flex-wrap: wrap;
      margin-top: 42px;
      animation: rise 0.8s 0.6s both;
    }

    .stat { text-align: left; }

    .stat strong {
      display: block;
      font-size: 24px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--text), var(--accent2));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1.2;
    }

    .stat span { color: var(--muted); font-size: 13px; }

    .stat + .stat { padding-left: 34px; border-left: 1px solid var(--border); }

    .reveal {
      opacity: 0;
      translate: 0 26px;
      transition:
        opacity 0.7s ease calc(var(--d, 0) * 75ms),
        translate 0.7s cubic-bezier(0.2, 0.7, 0.3, 1) calc(var(--d, 0) * 75ms),
        border-color 0.25s ease,
        transform 0.25s ease,
        box-shadow 0.25s ease;
    }

    .reveal.in { opacity: 1; translate: 0 0; }

    .section h2::after {
      content: "";
      display: block;
      width: 64px;
      height: 4px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--accent), var(--accent2));
      margin-top: 14px;
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.7s 0.2s cubic-bezier(0.2, 0.7, 0.3, 1);
    }

    .center h2::after {
      margin-left: auto;
      margin-right: auto;
      transform-origin: center;
    }

    .section h2.in::after { transform: scaleX(1); }

    .center .section-sub { margin-left: auto; margin-right: auto; }

    .card,
    .price-card,
    .info-card { position: relative; overflow: hidden; }

    .card::after,
    .price-card::after,
    .info-card::after {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.35s ease;
      background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 14%, transparent), transparent 65%);
    }

    .card:hover::after,
    .price-card:hover::after,
    .info-card:hover::after { opacity: 1; }

    .info-card { transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.7s ease, translate 0.7s ease; }

    .info-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 36px rgba(0, 0, 0, 0.4);
    }

    .status::before { animation: blink 1.6s ease-in-out infinite; }

    .key-box { animation: keyPop 0.55s cubic-bezier(0.2, 0.9, 0.3, 1.35); }

    .btn-copy { transition: transform 0.15s, border-color 0.2s; }
    .btn-copy:active { transform: scale(0.92); }
    .btn-copy:hover { color: var(--accent2); }

    .compare {
      position: relative;
      --pos: 50%;
      overflow: hidden;
      border-radius: 18px;
      border: 1px solid var(--border);
      box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
      aspect-ratio: 16 / 9;
      margin-top: 16px;
      cursor: ew-resize;
      user-select: none;
      -webkit-user-select: none;
      touch-action: none;
      background: #000;
    }

    .compare-img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      pointer-events: none;
      -webkit-user-drag: none;
    }

    .compare-top {
      position: absolute;
      inset: 0;
      clip-path: inset(0 calc(100% - var(--pos)) 0 0);
    }

    .compare-line {
      position: absolute;
      top: 0;
      bottom: 0;
      left: var(--pos);
      width: 3px;
      background: #fff;
      transform: translateX(-50%);
      pointer-events: none;
      z-index: 3;
      box-shadow: 0 0 14px rgba(0, 0, 0, 0.55);
    }

    .compare-handle {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 48px;
      height: 48px;
      border-radius: 50%;
      border: none;
      padding: 0;
      background: #fff;
      color: #15151f;
      font-size: 18px;
      font-weight: 700;
      font-family: inherit;
      line-height: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: ew-resize;
      pointer-events: auto;
      box-shadow: 0 6px 22px rgba(0, 0, 0, 0.5);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
    }

    .compare-handle:hover {
      transform: translate(-50%, -50%) scale(1.1);
      box-shadow: 0 8px 26px rgba(0, 0, 0, 0.6), 0 0 0 6px color-mix(in srgb, var(--accent) 18%, transparent);
    }

    .compare-handle:active { transform: translate(-50%, -50%) scale(0.96); }
    .compare-handle:focus-visible { outline: 2px solid var(--accent2); outline-offset: 3px; }

    @media (max-width: 640px) {
      .compare-handle { width: 40px; height: 40px; font-size: 16px; }
    }

    #contacts .btn { animation: pulseGlow 3.5s ease-in-out infinite; }

    @media (max-width: 640px) {
      .nav { display: none; }
      .blob { filter: blur(46px); }
      .b3 { display: none; }
    }

    .reset-card {
      position: relative;
      overflow: hidden;
      margin-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
      flex-wrap: wrap;
      padding: 24px 28px;
      border-radius: var(--radius);
      background: linear-gradient(var(--card), var(--card)) padding-box,
                  linear-gradient(120deg, var(--accent), var(--accent2), var(--accent)) border-box;
      border: 1px solid transparent;
      background-size: 100% 100%, 300% 300%;
      animation: borderShift 8s linear infinite;
      transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.7s ease, translate 0.7s ease;
    }

    .reset-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 44px color-mix(in srgb, var(--accent) 26%, transparent);
    }

    .reset-info h3 { font-size: 20px; margin-bottom: 8px; }

    .reset-info p { color: var(--muted); font-size: 15px; max-width: 460px; }

    .reset-list {
      list-style: none;
      margin-top: 12px;
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

    .reset-list li {
      position: relative;
      padding-left: 22px;
      color: var(--muted);
      font-size: 14px;
    }

    .reset-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--accent2);
      font-weight: 700;
    }

    .reset-buy { text-align: right; }

    .reset-price {
      font-size: 32px;
      font-weight: 800;
      color: var(--accent2);
      line-height: 1.1;
    }

    .reset-price span {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: var(--muted);
      margin-top: 4px;
    }

    .reset-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
      margin-top: 14px;
    }

    .reset-hint { color: var(--muted); font-size: 12px; margin-top: 10px; }

    .reset-hint code {
      font-family: ui-monospace, monospace;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 2px 6px;
      color: var(--text);
    }

    @media (max-width: 640px) {
      .reset-card { padding: 20px; gap: 18px; }
      .reset-buy { text-align: left; }
      .reset-actions { justify-content: flex-start; }
    }

    /* ---------- mobile ---------- */

    @keyframes sheet {
      from { transform: translateY(100%); }
      to { transform: none; }
    }

    @media (max-width: 640px) {
      .container { padding: 0 16px; }

      .header-inner { height: 54px; gap: 8px; }
      .logo { font-size: 17px; letter-spacing: 0.5px; }
      .hdr-right { gap: 7px; }
      .theme-swatches { gap: 5px; padding: 0; }
      .sw { width: 13px; height: 13px; }
      .btn { padding: 12px 20px; font-size: 15px; }
      .btn-sm { padding: 9px 13px; font-size: 13px; }
      .btn-lg { padding: 14px 22px; font-size: 16px; }
      .btn-copy { padding: 6px 12px; }

      .hero { padding: 54px 0 44px; }
      .hero h1 { font-size: clamp(29px, 8.4vw, 40px); }
      .hero-sub { font-size: 16px; margin-bottom: 26px; }
      .hero-actions { gap: 10px; }
      .hero-actions .btn { flex: 1 1 100%; }
      .hero-stats { gap: 12px 16px; margin-top: 30px; }
      .stat { flex: 1 1 28%; min-width: 82px; }
      .stat + .stat { padding-left: 0; border-left: none; }
      .stat strong { font-size: 19px; }
      .stat span { font-size: 12px; }

      .section { padding: 46px 0; }
      .section h2 { font-size: 25px; }
      .section-sub { font-size: 15px; margin-bottom: 24px; }

      .grid { grid-template-columns: 1fr; gap: 14px; margin-top: 22px; }
      .card, .price-card, .info-card { padding: 18px; }
      .card li, .price-list li { font-size: 14px; }
      .buy-grid { grid-template-columns: 1fr; gap: 14px; }
      .price { font-size: 38px; }
      .how li { margin: 10px 0; font-size: 14px; }
      .how span { flex: 0 0 26px; height: 26px; font-size: 13px; }

      .compare { border-radius: 14px; margin-top: 12px; }
      .compare-handle { width: 42px; height: 42px; font-size: 15px; }

      .reset-card { padding: 18px; margin-top: 14px; }
      .reset-info h3 { font-size: 18px; }
      .reset-info p { font-size: 14px; }
      .reset-list { gap: 8px 16px; margin-top: 10px; }
      .reset-list li { font-size: 13px; }
      .reset-price { font-size: 28px; }
      .reset-actions .btn { flex: 1 1 auto; }

      .field { font-size: 16px; padding: 12px 14px; }
      .auth-tabs { gap: 6px; }

      .modal { align-items: flex-end; }
      .modal-card {
        width: 100%;
        max-height: 86vh;
        border-radius: 18px 18px 0 0;
        border-bottom: none;
        padding: 22px 18px calc(22px + env(safe-area-inset-bottom));
        animation: sheet 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.1);
      }
      .modal h3 { font-size: 19px; }
      .pay-opt { padding: 13px 14px; font-size: 15px; }
      .pay-opt span { font-size: 12px; }
      .key { font-size: 20px; letter-spacing: 1px; }
      .key-box { padding: 15px; }

      .footer { padding: 20px 0 calc(26px + env(safe-area-inset-bottom)); }
    }

    @media (max-width: 400px) {
      .sw { width: 12px; height: 12px; }
      .theme-swatches { gap: 4px; }
      .btn-sm { padding: 8px 11px; font-size: 12.5px; }
    }

    /* ---------- style: marquee, eyebrows, footer ---------- */

    @keyframes marquee {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    .marquee {
      position: relative;
      margin-top: 46px;
      padding: 14px 0;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      overflow: hidden;
      -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
      mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    }

    .marquee-track {
      display: flex;
      gap: 12px;
      width: max-content;
      animation: marquee 38s linear infinite;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 14px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--card);
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
    }

    .chip i {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent2);
      box-shadow: 0 0 8px var(--accent2);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 14px;
    }

    .eyebrow::before {
      content: "";
      width: 26px;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--accent), var(--accent2));
    }

    .center .eyebrow { justify-content: center; }
    .center .eyebrow::after {
      content: "";
      width: 26px;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--accent2), var(--accent));
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      text-align: left;
    }

    .footer-brand { font-weight: 800; font-size: 16px; }
    .footer-brand span { color: var(--accent); }

    .footer-links { display: flex; gap: 18px; flex-wrap: wrap; }

    .footer-links a {
      color: var(--muted);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }

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

    @media (max-width: 640px) {
      .marquee { margin-top: 32px; padding: 10px 0; }
      .chip { padding: 6px 11px; font-size: 12px; }
      .eyebrow { font-size: 11px; letter-spacing: 1.5px; }
      .footer-inner { flex-direction: column; align-items: center; text-align: center; gap: 12px; }
    }

    .changelog {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 16px;
      margin-top: 22px;
    }

    .chg {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px;
      transition: border-color 0.25s ease, transform 0.25s ease;
    }

    .chg:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
    }

    .chg-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 5px 12px;
      border-radius: 999px;
      margin-bottom: 14px;
    }

    .chg-tag.add {
      background: color-mix(in srgb, var(--accent2) 16%, transparent);
      color: var(--accent2);
      border: 1px solid color-mix(in srgb, var(--accent2) 45%, transparent);
    }

    .chg-tag.imp {
      background: color-mix(in srgb, var(--accent) 16%, transparent);
      color: var(--accent);
      border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
    }

    .chg ul { list-style: none; }

    .chg li {
      position: relative;
      padding: 5px 0 5px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .chg li::before {
      content: "▸";
      position: absolute;
      left: 0;
      color: var(--accent2);
    }

    .chg li b { color: var(--text); font-weight: 600; }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
      html { scroll-behavior: auto; }
      .reveal { opacity: 1 !important; translate: none !important; }
    }