:root {
  color-scheme: light dark;
  --bg: #f7f9ff;
  --bg-2: #e6f0ff;
  --accent: #2b6dff;
  --accent-2: #66c2ff;
  --accent-3: #8df7ff;
  --text: #0b1020;
  --muted: #4a5c7a;
  --card: rgba(255, 255, 255, 0.92);
  --stroke: rgba(11, 16, 32, 0.12);
  --shadow: 0 30px 70px rgba(20, 60, 120, 0.16);
  --soft-shadow: 0 12px 28px rgba(20, 60, 120, 0.08);
  --max: 1200px;
}

/* Explicit theme overrides when user chooses via toggle */
html[data-theme="dark"] {
  --bg: #050a18;
  --bg-2: #0b1230;
  --accent: #4f8cff;
  --accent-2: #6fd3ff;
  --accent-3: #8df7ff;
  --text: #e9f2ff;
  --muted: #9fb6d6;
  --card: rgba(8, 14, 28, 0.72);
  --stroke: rgba(255, 255, 255, 0.08);
  --shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
  --soft-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
}

html[data-theme="dark"] body {
  background: radial-gradient(circle at 18% 20%, rgba(79, 140, 255, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 10%, rgba(141, 247, 255, 0.18) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
}

html[data-theme="dark"] .grain { opacity: 0.06; }
html[data-theme="dark"] .pill { background: rgba(12, 20, 40, 0.7); border: 1px solid rgba(79, 140, 255, 0.25); color: var(--text); }
html[data-theme="dark"] .newsletter {
  background: linear-gradient(135deg, rgba(8, 14, 28, 0.88), rgba(79, 140, 255, 0.15));
  border: 1px solid rgba(79, 140, 255, 0.2);
}
html[data-theme="light"] .newsletter {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(141, 247, 255, 0.18));
  border: 1px solid var(--stroke);
}

html[data-theme="light"] {
  --bg: #f7f9ff;
  --bg-2: #e6f0ff;
  --accent: #2b6dff;
  --accent-2: #66c2ff;
  --accent-3: #8df7ff;
  --text: #0b1020;
  --muted: #4a5c7a;
  --card: rgba(255, 255, 255, 0.92);
  --stroke: rgba(11, 16, 32, 0.12);
  --shadow: 0 30px 70px rgba(20, 60, 120, 0.16);
  --soft-shadow: 0 12px 28px rgba(20, 60, 120, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #050a18;
    --bg-2: #0b1230;
    --accent: #4f8cff;
    --accent-2: #6fd3ff;
    --accent-3: #8df7ff;
    --text: #e9f2ff;
    --muted: #9fb6d6;
    --card: rgba(8, 14, 28, 0.78);
    --stroke: rgba(255, 255, 255, 0.08);
    --shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
    --soft-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
  }

  body {
    background: radial-gradient(circle at 18% 20%, rgba(79, 140, 255, 0.2) 0%, transparent 45%),
      radial-gradient(circle at 85% 10%, rgba(141, 247, 255, 0.16) 0%, transparent 50%),
      linear-gradient(135deg, var(--bg), var(--bg-2));
    color: var(--text);
  }

  .grain {
    opacity: 0.06;
  }

  .pill {
    background: rgba(12, 20, 40, 0.7);
    border: 1px solid rgba(79, 140, 255, 0.25);
    color: var(--text);
  }

  .site-footer,
  .highlights article {
    background: rgba(255,255,255,0.02);
  }

  .signup input {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--text);
  }

  .newsletter {
    background: linear-gradient(135deg, rgba(8, 14, 28, 0.88), rgba(79, 140, 255, 0.15));
    border: 1px solid rgba(79, 140, 255, 0.2);
  }

  .newsletter h2,
  .newsletter p {
    color: var(--text);
  }
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at 15% 10%, rgba(102, 194, 255, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 0%, rgba(141, 247, 255, 0.18) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  color: var(--text);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: -0.01em;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(15, 40, 90, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 40, 90, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(transparent, rgba(10, 20, 40, 0.08) 50%, transparent 100%);
  background-size: 100% 6px;
  opacity: 0.3;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 0;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  opacity: 0.2;
  z-index: 0;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 24px 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  height: 80px;
  position: relative;
}

.logo img {
  height: 100%;
  width: auto;
  transition: opacity 0.2s ease;
}

.logo-dark {
  opacity: 0;
  position: absolute;
}

.logo-light {
  opacity: 1;
  position: relative;
}

html[data-theme="dark"] .logo-dark {
  opacity: 1;
  position: relative;
}

html[data-theme="dark"] .logo-light {
  opacity: 0;
  position: absolute;
}

html[data-theme="light"] .logo-dark {
  opacity: 0;
  position: absolute;
}

html[data-theme="light"] .logo-light {
  opacity: 1;
  position: relative;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .logo-dark {
    opacity: 1;
    position: relative;
  }

  html:not([data-theme]) .logo-light {
    opacity: 0;
    position: absolute;
  }
}

.meta {
  display: flex;
  gap: 10px;
}

.pill {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--stroke);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.04em;
  font-family: inherit;
  color: var(--text);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 28px 100px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: start;
  margin-top: 40px;
}

.hero-copy {
  max-width: 720px;
}

.hero-copy h1 {
  font-family: "Fraunces", "Times New Roman", serif;
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 1.02;
  margin: 8px 0 20px;
  letter-spacing: -0.02em;
  font-weight: 700;
  text-shadow: 0 10px 30px rgba(43, 109, 255, 0.15);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.7rem;
  color: var(--muted);
  font-family: "Press Start 2P", "Space Grotesk", sans-serif;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 44rem;
}

.cta {
  margin: 22px 0;
  display: flex;
  gap: 14px;
}

button {
  border: none;
  cursor: pointer;
  font: inherit;
  padding: 12px 22px;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #ffffff;
  font-weight: 700;
  padding: 14px 26px;
  box-shadow: var(--soft-shadow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.primary:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 18px 45px rgba(43, 109, 255, 0.22);
}

.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--stroke);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ghost:hover {
  background: rgba(255,255,255,0.06);
}

.signal {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 14px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--stroke);
  box-shadow: var(--soft-shadow);
}

.signal strong,
.card-footer strong {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.signal span,
.card-footer span {
  font-size: 0.95rem;
}

.hero-card {
  background: var(--card);
  -webkit-backdrop-filter: blur(8px) saturate(110%);
  backdrop-filter: blur(8px) saturate(110%);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(79, 140, 255, 0.12);
  border: 1px solid rgba(11, 16, 32, 0.12);
  color: var(--text);
}

.card-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--muted);
  font-family: "Press Start 2P", "Space Grotesk", sans-serif;
}

.hero-card h2 {
  font-family: "Fraunces", "Times New Roman", serif;
  font-size: 1.6rem;
  margin: 18px 0 12px;
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 12px;
  color: var(--muted);
}

.feature-list li {
  padding-left: 18px;
  position: relative;
}

.feature-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  border-radius: 999px;
  position: absolute;
  left: 0;
  top: 8px;
}

.card-footer {
  margin-top: 20px;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  border-top: 1px solid var(--stroke);
  padding-top: 16px;
}

.highlights {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 26px;
}

.highlights article {
  padding: 22px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--stroke);
  box-shadow: var(--soft-shadow);
  color: var(--text);
}

.highlights h3 {
  font-family: "Fraunces", "Times New Roman", serif;
  margin-bottom: 8px;
}

.newsletter {
  margin-top: 70px;
  padding: 28px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(141, 247, 255, 0.18));
  border: 1px solid var(--stroke);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.signup {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.signup input {
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: #ffffff;
  color: var(--text);
  min-width: 220px;
}

.signup button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 999px;
  box-shadow: var(--soft-shadow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.signup button:hover {
  transform: translateY(-1px);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto 40px;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
}

.footer-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 700px) {
  .card-footer {
    flex-direction: column;
  }

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

  .cta {
    flex-direction: column;
    align-items: stretch;
  }

  .signup {
    width: 100%;
  }

  .signup input {
    flex: 1;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}