@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary:    #0a0d14;
  --bg-secondary:  #0f1520;
  --bg-card:       #131c2e;
  --accent-blue:   #4a9eff;
  --accent-glow:   #1a6bcc;
  --text-primary:  #e8eaf0;
  --text-secondary:#8892a4;
  --text-muted:    #4a5568;
  --border:        #1e2d45;
  --success:       #34d399;
  --warning:       #fbbf24;
  --danger:        #f87171;
  --font-heading:  'DM Serif Display', serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Stars Canvas ─────────────────────────────────────────── */
#stars-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Nav ──────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 13, 20, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-icon { font-size: 1.15rem; }

.nav-title {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.home-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.home-link:hover { color: var(--accent-blue); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 5rem 1.5rem 3.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 4rem);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 48px rgba(74, 158, 255, 0.28);
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}

/* ── Main layout ──────────────────────────────────────────── */
main {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* ── Location Card ────────────────────────────────────────── */
.location-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1.3rem;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
  align-self: flex-start;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-glow);
  box-shadow: 0 0 22px rgba(74, 158, 255, 0.38);
}
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
  align-self: flex-end;
}
.btn-secondary:hover {
  background: rgba(74, 158, 255, 0.09);
  box-shadow: 0 0 18px rgba(74, 158, 255, 0.18);
}

.or-divider {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}
.or-divider::before,
.or-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.manual-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 0.9rem;
  align-items: end;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.input-group label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.input-group input {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.58rem 0.75rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-group input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(74, 158, 255, 0.14);
}
.input-group input::placeholder { color: var(--text-muted); }
.input-group input[type="number"]::-webkit-inner-spin-button,
.input-group input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }

.location-status {
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  min-height: 1.1em;
}
.location-status.error   { color: var(--danger); }
.location-status.success { color: var(--success); }
.location-status.loading { color: var(--accent-blue); }

/* ── Filter Bar ───────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sat-toggles {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sat-toggle {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
}
.sat-toggle:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}
.sat-toggle.active {
  background: rgba(74, 158, 255, 0.1);
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.sat-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── App Status ───────────────────────────────────────────── */
.app-status {
  padding: 0.9rem 1.2rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.app-status.loading {
  color: var(--accent-blue);
  border-color: rgba(74, 158, 255, 0.28);
}
.app-status.error {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.28);
  background: rgba(248, 113, 113, 0.04);
}
.app-status.warn {
  color: var(--warning);
  border-color: rgba(251, 191, 36, 0.28);
}

@keyframes ellipsis {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%, 100% { content: '...'; }
}
.loading-dots::after {
  content: '';
  animation: ellipsis 1.4s steps(4, end) infinite;
}

/* ── Countdown Banner ─────────────────────────────────────── */
.countdown-banner {
  background: linear-gradient(135deg, rgba(74, 158, 255, 0.07), rgba(26, 107, 204, 0.07));
  border: 1px solid rgba(74, 158, 255, 0.22);
  border-radius: 12px;
  padding: 1.2rem 1.75rem;
}

.countdown-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.countdown-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.countdown-display {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 500;
  color: var(--accent-blue);
  letter-spacing: 0.05em;
  min-width: 130px;
}

.countdown-details {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── Passes Section ───────────────────────────────────────── */
.passes-header {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: 1rem;
}

.passes-header h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
}

.passes-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.passes-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Pass Card ────────────────────────────────────────────── */
.pass-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.pass-card:hover {
  border-color: rgba(74, 158, 255, 0.28);
  transform: translateY(-1px);
}
.pass-card.next-pass {
  border-color: rgba(74, 158, 255, 0.38);
  box-shadow: 0 0 24px rgba(74, 158, 255, 0.07);
}

.pass-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem 0.8rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pass-sat-name {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.sat-badge-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
}

.sat-full-name {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.pass-header-badges {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  flex-wrap: wrap;
}

.badge-next {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.22rem 0.55rem;
  background: rgba(74, 158, 255, 0.13);
  border: 1px solid rgba(74, 158, 255, 0.38);
  border-radius: 4px;
  color: var(--accent-blue);
}

.badge-high {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.22rem 0.55rem;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.32);
  border-radius: 4px;
  color: var(--success);
}

.pass-card-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.25rem;
  padding: 1.25rem;
  align-items: start;
}

.pass-info {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.pass-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.pass-time {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-top: 0.15rem;
}

.pass-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Magnitude colour classes */
.mag-brilliant  { color: #c084fc; }
.mag-verybright { color: var(--warning); }
.mag-bright     { color: var(--success); }
.mag-visible    { color: var(--text-secondary); }
.mag-faint      { color: var(--text-muted); }

.vis-rating {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.52rem;
  border-radius: 4px;
  display: inline-block;
}
.vis-brilliant  { background: rgba(192,132,252,0.13); color: #c084fc;         border: 1px solid rgba(192,132,252,0.28); }
.vis-verybright { background: rgba(251,191,36,0.1);   color: var(--warning);  border: 1px solid rgba(251,191,36,0.28); }
.vis-bright     { background: rgba(52,211,153,0.1);   color: var(--success);  border: 1px solid rgba(52,211,153,0.28); }
.vis-visible    { background: rgba(136,146,164,0.08); color: var(--text-secondary); border: 1px solid var(--border); }
.vis-faint      { background: transparent;            color: var(--text-muted);     border: 1px solid var(--border); }

.pass-badges-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Cloud cover stat value colours */
.cloud-val.cloud-clear    { color: var(--success); }
.cloud-val.cloud-partly   { color: #6ee7b7; }
.cloud-val.cloud-mostly   { color: var(--warning); }
.cloud-val.cloud-overcast { color: var(--danger); }

/* Cloud cover badge */
.cloud-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.52rem;
  border-radius: 4px;
  display: inline-block;
}
.cloud-badge.cloud-clear    { background: rgba(52,211,153,0.1);  color: var(--success);        border: 1px solid rgba(52,211,153,0.28); }
.cloud-badge.cloud-partly   { background: rgba(110,231,183,0.08); color: #6ee7b7;               border: 1px solid rgba(110,231,183,0.2); }
.cloud-badge.cloud-mostly   { background: rgba(251,191,36,0.1);  color: var(--warning);        border: 1px solid rgba(251,191,36,0.28); }
.cloud-badge.cloud-overcast { background: rgba(248,113,113,0.08); color: var(--danger);         border: 1px solid rgba(248,113,113,0.22); }

.pass-direction {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}
.dir-rise   { color: var(--success); }
.dir-set    { color: var(--danger); }
.dir-peak   { color: var(--text-primary); }
.dir-arrow  { color: var(--text-muted); }

.pass-compass { flex-shrink: 0; }

/* ── No Passes ────────────────────────────────────────────── */
.no-passes {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
}
.no-passes-icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 0.75rem;
}
.no-passes-hint {
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 2;
}
footer a { color: var(--text-secondary); text-decoration: none; }
footer a:hover { color: var(--accent-blue); }

/* ── Utility ──────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 680px) {
  .manual-inputs {
    grid-template-columns: 1fr 1fr;
  }
  .manual-inputs .btn-secondary {
    grid-column: 1 / -1;
    justify-self: start;
  }
  .pass-card-body {
    grid-template-columns: 1fr;
  }
  .pass-compass {
    display: flex;
    justify-content: center;
  }
  .pass-stats { gap: 1rem; }
  .countdown-display { font-size: 1.5rem; }
}

@media (max-width: 400px) {
  .manual-inputs { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
}