/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0b1120;
  --bg-accent: #0f172a;
  --surface: #1e293b;
  --surface-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent-blue: #38bdf8;
  --accent-green: #4ade80;
  --accent-yellow: #facc15;
  --accent-orange: #fb923c;
  --accent-purple: #c084fc;
  --accent-pink: #f472b6;
  --accent-indigo: #818cf8;
  --moon: #fef3c7;
  --radius: 12px;

  /* Harmonize Pico with the existing palette */
  --pico-background-color: var(--bg);
  --pico-color: var(--text);
  --pico-muted-color: var(--text-muted);
  --pico-h1-color: var(--text);
  --pico-h2-color: var(--text);
  --pico-h3-color: var(--text);
  --pico-primary: var(--accent-indigo);
  --pico-primary-hover: var(--accent-indigo);
  --pico-primary-focus: rgba(129, 140, 248, 0.25);
  --pico-card-background-color: var(--surface);
  --pico-card-border-color: var(--border);
  --pico-border-color: var(--border);
  --pico-border-radius: var(--radius);
  --pico-form-element-background-color: var(--surface);
  --pico-form-element-border-color: var(--border);
  --pico-form-element-color: var(--text);
  --pico-form-element-focus-color: var(--accent-indigo);
}

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  background:
    radial-gradient(ellipse at top, #1e1b4b 0%, var(--bg) 55%) no-repeat,
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  text-align: center;
  padding: 2rem 1rem 1rem;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.location-bar {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.35rem 0.35rem 0.95rem;
}

.location-bar__label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.location-bar__button {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
  width: auto;
  margin: 0;
}

.location-bar__button:hover {
  border-color: var(--accent-indigo);
  color: var(--accent-indigo);
}

main {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

/* ===== Highlight banner ===== */
.highlight {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: center;
  margin: 1rem 0 1.5rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.25), rgba(192, 132, 252, 0.15));
  border: 1px solid transparent;
  border-image: linear-gradient(135deg, var(--accent-indigo), var(--accent-purple)) 1;
  border-radius: var(--radius);
}

.highlight__icon {
  font-size: 2.5rem;
  line-height: 1;
}

.highlight__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--accent-purple);
}

.highlight__detail {
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.45;
}

/* ===== Panels ===== */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.panel__title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.9rem;
}

.placeholder {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.9rem;
}

/* ===== Sun grid ===== */
.sun-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.6rem;
}

.sun-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  background: var(--surface-2);
  border-radius: 8px;
  padding: 0.55rem 0.85rem;
  gap: 0.5rem;
}

.sun-row__label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.sun-row__value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
}

.sun-row--golden  .sun-row__value { color: var(--accent-orange); }
.sun-row--rise    .sun-row__value { color: var(--accent-yellow); }
.sun-row--noon    .sun-row__value { color: var(--accent-blue); }
.sun-row--civil   .sun-row__value { color: var(--accent-indigo); }
.sun-row--nautical .sun-row__value { color: var(--accent-purple); }
.sun-row--astro   .sun-row__value { color: var(--accent-pink); }

/* ===== Moon ===== */
.moon-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: center;
}

.moon-svg-wrap {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.moon-svg {
  width: 120px;
  height: 120px;
  filter: drop-shadow(0 0 14px rgba(254, 243, 199, 0.18));
}

.moon-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.moon-info__row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.92rem;
}

.moon-info__label { color: var(--text-muted); }
.moon-info__value { font-weight: 600; font-variant-numeric: tabular-nums; }

/* ===== ISS pass table ===== */
.passes-wrap { overflow-x: auto; }

.passes {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.passes th,
.passes td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.passes th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.passes tbody tr:last-child td { border-bottom: none; }
.passes tbody tr:hover { background: var(--surface-2); }

.passes td {
  font-variant-numeric: tabular-nums;
}

.passes .peak-high { color: var(--accent-green); font-weight: 700; }
.passes .peak-mid  { color: var(--accent-yellow); font-weight: 600; }
.passes .peak-low  { color: var(--accent-orange); }

.passes-empty {
  padding: 1rem;
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

footer a:hover { text-decoration: underline; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .highlight { grid-template-columns: 1fr; text-align: center; }
  .moon-layout { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .moon-info { width: 100%; }
}

@media (max-width: 480px) {
  header h1 { font-size: 1.35rem; }
  .passes th, .passes td { padding: 0.45rem 0.5rem; font-size: 0.85rem; }
}