:root {
  --bg: #101312;
  --ink: #f6f2ea;
  --muted: #a9aaa4;
  --line: rgba(246, 242, 234, 0.12);
  --accent: #45b8a8;
  --accent-strong: #29796f;
  --gold: #d5a84d;
  --white: #ffffff;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 72% 16%, rgba(69, 184, 168, 0.2), transparent 32%),
    linear-gradient(145deg, #101312 0%, #171917 48%, #232018 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(16, 19, 18, 0.7);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  font-size: 0.78rem;
  letter-spacing: 0;
  box-shadow: 0 16px 34px rgba(69, 184, 168, 0.22);
}

.header-link {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.header-link:hover,
.site-footer a:hover {
  color: var(--accent);
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 390px);
  gap: clamp(48px, 8vw, 120px);
  align-items: center;
  padding: 120px clamp(20px, 4vw, 56px) 72px;
  overflow: hidden;
}

.hero-content {
  width: min(720px, 100%);
}

.hero h1 {
  margin: 0;
  line-height: 1;
  letter-spacing: 0;
  font-size: clamp(3.3rem, 10vw, 8.8rem);
}

.hero-copy {
  max-width: 590px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.hero-mark {
  display: grid;
  width: clamp(82px, 11vw, 120px);
  height: clamp(82px, 11vw, 120px);
  place-items: center;
  margin-bottom: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
  color: var(--white);
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  box-shadow: 0 26px 70px rgba(69, 184, 168, 0.22);
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  font-weight: 800;
}

.status-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  color: var(--muted);
  font-weight: 700;
}

.status-line span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 24px rgba(213, 168, 77, 0.8);
}

.status-line p {
  margin: 0;
}

.app-preview {
  display: flex;
  justify-content: center;
}

.phone-shell {
  width: min(100%, 330px);
  aspect-ratio: 0.72;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 42px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04));
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.34);
}

.phone-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 54px;
}

.phone-top span {
  width: 54px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.phone-top span:last-child {
  width: 24px;
}

.app-icon {
  display: grid;
  width: 112px;
  height: 112px;
  place-items: center;
  margin: 0 auto;
  border-radius: 24px;
  color: var(--white);
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  font-size: 1.35rem;
  font-weight: 800;
}

.app-lines {
  display: grid;
  gap: 14px;
  margin: 54px auto 0;
  width: 78%;
}

.app-lines span {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.app-lines span:nth-child(2) {
  width: 72%;
}

.app-lines span:nth-child(3) {
  width: 48%;
}

.site-footer {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 4vw, 56px);
  color: var(--muted);
  font-weight: 600;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    align-items: start;
    padding-bottom: 120px;
  }

  .app-preview {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .site-header,
  .site-footer {
    padding-right: 18px;
    padding-left: 18px;
  }

  .brand span:last-child {
    display: none;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 18px;
  }
}