:root {
      --bg: #050507;
      --card: rgba(13, 13, 18, 0.72);
      --line: rgba(255, 255, 255, 0.11);
      --text: #f7f7fb;
      --muted: #b7b8c6;
      --accent-a: #ff5f3a;
      --accent-b: #16dbc3;
    }

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

    html,
    body {
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: var(--bg);
    }

    body {
      font-family: "Manrope", "Segoe UI", sans-serif;
      color: var(--text);
      position: relative;
      display: grid;
      place-items: center;
      padding:
        max(12px, env(safe-area-inset-top))
        max(14px, env(safe-area-inset-right))
        max(12px, env(safe-area-inset-bottom))
        max(14px, env(safe-area-inset-left));
    }

    #smoke-bg {
      position: fixed;
      inset: 0;
      width: 100%;
      height: 100%;
      z-index: 0;
      pointer-events: none;
    }

    #fps-meter {
      position: fixed;
      left: max(10px, env(safe-area-inset-left));
      top: max(10px, env(safe-area-inset-top));
      z-index: 3;
      padding: 5px 8px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.14);
      background: rgba(8, 9, 13, 0.5);
      color: rgba(215, 218, 233, 0.94);
      font-family: "Manrope", "Segoe UI", sans-serif;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.04em;
      line-height: 1;
      pointer-events: none;
      user-select: none;
    }

    .hero {
      --hover-x: 0px;
      --hover-y: 0px;
      --hover-rx: 0deg;
      --hover-ry: 0deg;
      position: relative;
      z-index: 1;
      width: min(560px, 92vw);
      max-height: 100%;
      display: grid;
      align-content: center;
      gap: clamp(10px, 2.1vh, 16px);
      padding: clamp(16px, 3.2vw, 30px);
      border-radius: 26px;
      border: 1px solid var(--line);
      background: rgba(10, 10, 14, 0.76);
      box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.05),
        0 24px 70px rgba(0, 0, 0, 0.52),
        0 0 46px rgba(255, 255, 255, 0.06);
      transform: perspective(1200px) translate3d(var(--hover-x), var(--hover-y), 0) rotateX(var(--hover-rx)) rotateY(var(--hover-ry));
      transform-origin: center center;
      transform-style: preserve-3d;
      will-change: transform, box-shadow;
      text-align: center;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      top: -100px;
      right: -100px;
      background: radial-gradient(circle, rgba(255, 95, 58, 0.26) 0%, transparent 70%);
      pointer-events: none;
    }

    .hero::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 52%;
      width: 340px;
      height: 340px;
      transform: translate(-50%, -50%);
      border-radius: 50%;
      background:
        radial-gradient(circle at 50% 45%, rgba(255, 120, 72, 0.14) 0 20%, rgba(22, 219, 195, 0.12) 46%, rgba(72, 134, 255, 0.1) 64%, rgba(22, 219, 195, 0) 80%);
      filter: blur(20px);
      opacity: 0.46;
      pointer-events: none;
    }

    .hero > * {
      position: relative;
      z-index: 1;
      transform: translateZ(18px);
    }

    .brand {
      justify-self: center;
      padding: 6px 12px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.05);
      color: #d6d8e5;
      font-size: clamp(11px, 2.7vw, 13px);
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    h1 {
      font-family: "Unbounded", "Segoe UI", sans-serif;
      font-size: clamp(24px, 6.4vw, 48px);
      line-height: 1.04;
      letter-spacing: -0.02em;
      max-width: 17ch;
      margin-inline: auto;
    }

    .abilities {
      list-style: none;
      display: grid;
      gap: 8px;
      justify-items: center;
      color: var(--muted);
      font-size: clamp(14px, 3.2vw, 19px);
      font-weight: 700;
    }

    .abilities li {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }

    .abilities li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-b), var(--accent-a));
      box-shadow: 0 0 16px rgba(22, 219, 195, 0.7);
      flex: 0 0 auto;
    }

    .cta {
      justify-self: center;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 58px;
      min-width: min(380px, 82vw);
      padding: 0 32px;
      border-radius: 18px;
      text-decoration: none;
      color: #fff;
      font-size: clamp(20px, 5vw, 24px);
      font-weight: 800;
      background: linear-gradient(95deg, #ff5f3a, #ff934a 45%, #16dbc3 100%);
      position: relative;
      overflow: hidden;
      isolation: isolate;
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 16px 34px rgba(255, 95, 58, 0.25),
        0 10px 40px rgba(22, 219, 195, 0.22);
      transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
    }

    .cta::before {
      content: "";
      position: absolute;
      inset: -34%;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.46) 0%, rgba(255, 255, 255, 0.1) 32%, rgba(255, 255, 255, 0) 64%);
      opacity: 0;
      transform: scale(0.68);
      transition: opacity 240ms ease, transform 280ms ease;
      pointer-events: none;
      z-index: 0;
    }

    .cta .cta-label {
      position: relative;
      z-index: 2;
      display: inline-block;
      transition: transform 180ms ease, opacity 180ms ease, letter-spacing 240ms ease;
    }

    .cta:hover,
    .cta:focus-visible {
      transform: translateY(-2px);
      filter: saturate(1.12);
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.23) inset,
        0 20px 40px rgba(255, 95, 58, 0.3),
        0 12px 44px rgba(22, 219, 195, 0.3);
    }

    .cta.is-pressing {
      transform: translateY(2px) scale(0.975);
      filter: saturate(1.22) brightness(1.06);
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.3) inset,
        0 8px 16px rgba(255, 95, 58, 0.2),
        0 4px 22px rgba(22, 219, 195, 0.18);
    }

    .cta.is-pressing::before {
      opacity: 0.56;
      transform: scale(1);
    }

    .cta.is-morphing .cta-label {
      transform: translateY(-1px) scale(0.985);
      letter-spacing: 0.018em;
    }

    .cta.is-opening {
      pointer-events: none;
    }

    .cta .cta-ripple {
      --ripple-size: 24px;
      position: absolute;
      left: 50%;
      top: 50%;
      width: var(--ripple-size);
      height: var(--ripple-size);
      border-radius: 999px;
      pointer-events: none;
      z-index: 1;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.58) 0%, rgba(255, 255, 255, 0.2) 48%, rgba(255, 255, 255, 0) 72%);
      transform: translate(-50%, -50%) scale(0);
      opacity: 0.72;
      mix-blend-mode: screen;
      animation: cta-ripple 580ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
    }

    @keyframes cta-ripple {
      0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0.74;
      }
      70% {
        opacity: 0.24;
      }
      100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0;
      }
    }

    .note {
      color: #9c9fb3;
      font-size: clamp(11px, 2.5vw, 13px);
      font-weight: 700;
    }

    @media (max-width: 480px) {
      .hero {
        border-radius: 20px;
        width: min(560px, 94vw);
      }

      .abilities li {
        white-space: normal;
        text-align: left;
        justify-content: center;
      }
    }