/* The main site's pages (home, Gallery, Travel). The Astronomy app has its own styles. */

:root {
  --ink: #eef1ff;
  --muted: rgba(226, 231, 255, 0.68);
  --line: rgba(190, 205, 255, 0.18);
  --card: rgba(18, 24, 52, 0.55);
  --card-hover: rgba(28, 36, 76, 0.7);
  --accent: #8fb4ff;
  --glow-astronomy: #6fd3ff;
  --glow-gallery: #ff8fc7;
  --glow-travel: #ffd479;
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  background: #05070f;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Star field ---------- */

/* A fixed layer rather than a fixed body background, which iOS Safari ignores. */
.sky {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background: radial-gradient(ellipse at 20% 0%, #1b2552 0%, #0b1030 45%, #05070f 100%);
}

.stars {
  position: absolute;
  inset: -50%;
  background-repeat: repeat;
  animation: drift 240s linear infinite;
}
.stars-small {
  background-image:
    radial-gradient(1px 1px at 20px 30px, #fff, transparent),
    radial-gradient(1px 1px at 120px 80px, #dfe6ff, transparent),
    radial-gradient(1px 1px at 200px 160px, #fff, transparent),
    radial-gradient(1px 1px at 60px 190px, #cfd9ff, transparent),
    radial-gradient(1px 1px at 170px 20px, #fff, transparent);
  background-size: 230px 230px;
  opacity: 0.7;
}
.stars-medium {
  background-image:
    radial-gradient(1.5px 1.5px at 40px 60px, #fff, transparent),
    radial-gradient(1.5px 1.5px at 300px 120px, #ffe9c9, transparent),
    radial-gradient(1.5px 1.5px at 180px 280px, #d4e2ff, transparent);
  background-size: 420px 420px;
  opacity: 0.8;
  animation-duration: 360s;
}
.stars-large {
  background-image:
    radial-gradient(2px 2px at 100px 200px, #fff, transparent),
    radial-gradient(2.5px 2.5px at 520px 90px, #cfe0ff, transparent);
  background-size: 700px 700px;
  animation: drift 480s linear infinite, twinkle 6s ease-in-out infinite;
}
.milky-way {
  position: absolute;
  inset: -20% -40%;
  background: linear-gradient(115deg, transparent 38%, rgba(140, 160, 255, 0.08) 46%,
    rgba(255, 210, 230, 0.07) 50%, rgba(140, 160, 255, 0.06) 54%, transparent 62%);
  filter: blur(20px);
}

@keyframes drift { to { transform: translate(-230px, -115px); } }
@keyframes twinkle { 50% { opacity: 0.55; } }

@media (prefers-reduced-motion: reduce) {
  .stars { animation: none; }
}

/* ---------- Layout ---------- */

.page {
  position: relative;
  min-height: 100vh;
  max-width: 1120px;
  margin: 0 auto;
  padding: max(72px, env(safe-area-inset-top)) 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.hero { text-align: center; max-width: 720px; margin: 0 auto; }
.eyebrow {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
h1 {
  margin: 0;
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  background: linear-gradient(180deg, #ffffff 30%, #b9c8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede { margin: 20px auto 0; max-width: 560px; font-size: 18px; line-height: 1.55; color: var(--muted); }

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card {
  --glow: var(--accent);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 300px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: -40% 30% auto -30%;
  height: 220px;
  background: radial-gradient(circle, color-mix(in srgb, var(--glow) 35%, transparent), transparent 70%);
  opacity: 0.5;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.card:hover, .card:focus-visible {
  transform: translateY(-6px);
  background: var(--card-hover);
  border-color: color-mix(in srgb, var(--glow) 55%, transparent);
  box-shadow: 0 18px 50px color-mix(in srgb, var(--glow) 22%, transparent);
}
.card:hover::before, .card:focus-visible::before { opacity: 0.9; }
.card:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; }

.card-astronomy { --glow: var(--glow-astronomy); }
.card-gallery { --glow: var(--glow-gallery); }
.card-travel { --glow: var(--glow-travel); }

.card-icon { position: relative; width: 56px; height: 56px; color: var(--glow); }
.app-icon { width: 64px; height: 64px; border-radius: 15px; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45); }

.card-text { position: relative; flex: 1; }
.card h2 { margin: 0 0 8px; font-size: 26px; letter-spacing: -0.01em; }
.card p { margin: 0; font-size: 16px; line-height: 1.5; color: var(--muted); }

.card-action {
  position: relative;
  align-self: flex-start;
  font-weight: 600;
  font-size: 15px;
  color: var(--glow);
}
.card-action span { display: inline-block; transition: transform 0.25s ease; }
.card:hover .card-action span { transform: translateX(4px); }
.card-action.soon {
  padding: 4px 10px;
  border: 1px solid color-mix(in srgb, var(--glow) 45%, transparent);
  border-radius: 999px;
  font-size: 13px;
}

.footer { margin-top: auto; text-align: center; font-size: 13px; color: rgba(226, 231, 255, 0.45); }
.footer p { margin: 0; }

/* ---------- Placeholder pages ---------- */

.placeholder {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 24px;
  text-align: center;
}
.placeholder h1 { font-size: clamp(36px, 6vw, 60px); }
.placeholder p { margin: 0; max-width: 460px; font-size: 17px; line-height: 1.55; color: var(--muted); }
.back {
  margin-top: 12px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}
.back:hover { background: var(--card-hover); }

/* ---------- Narrow screens ---------- */

@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; width: 100%; }
  .card { min-height: 0; }
  .page { padding-top: max(48px, env(safe-area-inset-top)); gap: 40px; }
}