:root {
  --bg: #070b14;
  --surface: rgba(18, 25, 43, 0.72);
  --surface-strong: #11182a;
  --text: #f5f7fb;
  --muted: #9da8ba;
  --line: rgba(255, 255, 255, 0.09);
  --accent: #7c8cff;
  --accent-soft: rgba(124, 140, 255, 0.14);
  --success: #68d7a5;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 15%, rgba(124, 140, 255, 0.14), transparent 34rem),
    radial-gradient(circle at 92% 72%, rgba(85, 191, 255, 0.08), transparent 30rem),
    var(--bg);
}

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

.page-shell {
  width: min(1180px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark,
.preview-logo {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 11px;
  background: linear-gradient(145deg, #8a97ff, #5162dc);
  color: white;
  font-weight: 800;
  box-shadow: 0 8px 28px rgba(84, 100, 224, 0.25);
}

.brand-text {
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c8d0de;
  background: rgba(255,255,255,0.03);
  font-size: 0.82rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(104, 215, 165, 0.09);
}

.hero {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: center;
  padding: 82px 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: #b8c0ff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
  font-weight: 760;
}

h1 span {
  display: block;
  color: #aab4c8;
}

.lead {
  max-width: 670px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.75;
}

.notice {
  width: fit-content;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 36px;
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
}

.notice-icon {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.notice strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.notice p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.preview-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.015)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.preview-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  background: radial-gradient(circle at top right, rgba(124, 140, 255, 0.18), transparent 42%);
  pointer-events: none;
}

.preview-top,
.preview-content {
  position: relative;
  z-index: 1;
}

.preview-top {
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 23px;
  border-bottom: 1px solid var(--line);
}

.preview-logo {
  width: 46px;
  height: 46px;
  border-radius: 14px;
}

.preview-name {
  margin: 0;
  font-weight: 750;
  font-size: 1rem;
}

.preview-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.preview-content {
  display: grid;
  gap: 12px;
  padding-top: 18px;
}

.feature {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: start;
  padding: 16px 0;
}

.feature + .feature {
  border-top: 1px solid var(--line);
}

.feature-number {
  color: #7885a0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.feature strong {
  display: block;
  margin-bottom: 5px;
  font-size: 0.94rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  padding: 28px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-brand {
  margin: 0;
  color: #e8ecf5;
  font-weight: 700;
  font-size: 0.9rem;
}

.footer-copy,
.copyright {
  margin: 6px 0 0;
  font-size: 0.76rem;
}

.copyright {
  text-align: right;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 58px 0 70px;
  }

  h1 {
    font-size: clamp(3.1rem, 13vw, 5rem);
  }

  .preview-card {
    max-width: 620px;
  }

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

  .copyright {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .page-shell {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 78px;
  }

  .status {
    padding: 8px 10px;
    font-size: 0.72rem;
  }

  .hero {
    padding-top: 44px;
    gap: 46px;
  }

  h1 {
    font-size: clamp(2.8rem, 15vw, 4.2rem);
  }

  .lead {
    margin-top: 24px;
  }

  .notice {
    width: 100%;
  }

  .preview-card {
    padding: 22px;
    border-radius: 22px;
  }
}