/* ---------------------------------------------------------------
   Design tokens
   ----------------------------------------------------------------
   Palette is drawn from the aurora itself: the deep night sky it
   appears against, the oxygen-green and nitrogen-violet of the
   light, and a warm amber reserved for warnings.
------------------------------------------------------------------ */
:root {
  --bg: #0a1120;
  --bg-panel: #121b2e;
  --bg-panel-raised: #17233a;
  --border: rgba(232, 237, 245, 0.09);
  --border-strong: rgba(232, 237, 245, 0.18);

  --text: #e8edf5;
  --text-muted: #8492ac;
  --text-faint: #566178;

  --aurora-green: #45f0b3;
  --aurora-green-dim: #2b9e79;
  --aurora-violet: #9b7bff;
  --amber: #ffb84d;
  --red: #ff6b6b;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  --radius: 14px;
  --radius-sm: 8px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--aurora-green); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.4em;
}

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

/* ---------------------------------------------------------------
   Signature element: an animated aurora ribbon fixed behind
   everything, faint enough not to fight with content.
------------------------------------------------------------------ */
.sky-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(155, 123, 255, 0.12), transparent),
    var(--bg);
}

.ribbon { position: absolute; top: 0; left: 0; width: 100%; height: 60vh; opacity: 0.55; }

.ribbon-path { filter: blur(18px); }
.ribbon-a { fill: rgba(69, 240, 179, 0.16); animation: drift-a 22s ease-in-out infinite; }
.ribbon-b { fill: rgba(155, 123, 255, 0.14); animation: drift-b 28s ease-in-out infinite; }

@keyframes drift-a {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(-30px) translateY(14px); }
}
@keyframes drift-b {
  0%, 100% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(25px) translateY(-10px); }
}

@media (prefers-reduced-motion: reduce) {
  .ribbon-a, .ribbon-b { animation: none; }
}

/* ---------------------------------------------------------------
   Header
------------------------------------------------------------------ */
.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 17, 32, 0.7);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  box-shadow: 0 0 12px rgba(69, 240, 179, 0.6);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
}

.site-nav a { color: var(--text-muted); }
.site-nav a:hover { color: var(--text); text-decoration: none; }

.nav-cta {
  color: var(--bg) !important;
  background: var(--aurora-green);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--aurora-green-dim); }

/* ---------------------------------------------------------------
   Hero
------------------------------------------------------------------ */
main { position: relative; z-index: 1; }

.hero { padding: 72px 24px 40px; max-width: 720px; }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--aurora-green);
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.1;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 56ch;
}

/* ---------------------------------------------------------------
   Panels
------------------------------------------------------------------ */
.panel { padding: 40px 24px; scroll-margin-top: 90px; }

.panel h2 { font-size: 1.6rem; }
.section-sub { color: var(--text-muted); margin-top: -6px; margin-bottom: 28px; }

/* ---------------------------------------------------------------
   Instrument cards (conditions)
------------------------------------------------------------------ */
.instrument-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.instrument-card {
  background: linear-gradient(180deg, var(--bg-panel-raised), var(--bg-panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.instrument-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 14px;
}

.instrument-value {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.big-number {
  font-family: var(--font-mono);
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.unit { font-family: var(--font-mono); color: var(--text-muted); font-size: 1.1rem; }

.instrument-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(69, 240, 179, 0.14);
  color: var(--aurora-green);
}
.tag-poor, .tag-low, .tag-very-low { background: rgba(255, 107, 107, 0.14); color: var(--red); }
.tag-fair, .tag-partly-clouded { background: rgba(255, 184, 77, 0.16); color: var(--amber); }
.tag-good, .tag-great, .tag-excellent, .tag-exceptional, .tag-extreme, .tag-clear-enough {
  background: rgba(69, 240, 179, 0.14); color: var(--aurora-green);
}

.instrument-detail { color: var(--text-muted); margin: 14px 0 0; font-size: 0.95rem; }
.instrument-meta { color: var(--text-faint); font-size: 0.78rem; margin-top: 18px; font-family: var(--font-mono); }
.instrument-error { color: var(--text-muted); font-size: 0.9rem; }

.sparkline { width: 100%; height: 60px; margin-top: 18px; }
.sparkline polyline {
  fill: none;
  stroke: var(--aurora-green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sparkline-caption { color: var(--text-faint); font-size: 0.75rem; margin: 6px 0 0; }

.night-forecast { margin-top: 20px; }
.night-forecast-label { font-size: 0.78rem; color: var(--text-faint); margin: 0 0 8px; font-family: var(--font-mono); }
.night-bars { display: flex; align-items: flex-end; gap: 3px; height: 36px; }
.night-bar {
  flex: 1;
  height: calc(var(--pct) * 1%);
  min-height: 3px;
  background: linear-gradient(180deg, var(--aurora-violet), var(--aurora-green));
  border-radius: 2px 2px 0 0;
  opacity: 0.75;
}

/* ---------------------------------------------------------------
   Forecast tabs
------------------------------------------------------------------ */
.forecast-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.forecast-tab {
  padding: 10px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.forecast-tab:hover {
  background: var(--bg-panel-raised);
  color: var(--text);
}

.forecast-tab.active {
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  color: #0a1120;
  border-color: transparent;
  font-weight: 600;
}

.forecast-content {
  position: relative;
}

.forecast-day {
  display: none;
}

.forecast-day.active {
  display: block;
}

.forecast-card {
  background: linear-gradient(180deg, var(--bg-panel-raised), var(--bg-panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

.forecast-cloud {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.forecast-aurora {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.forecast-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

.forecast-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.forecast-bar {
  height: 8px;
  background: var(--bg-panel-raised);
  border-radius: 999px;
  overflow: hidden;
}

.forecast-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--aurora-violet), var(--aurora-green));
  border-radius: 999px;
  transition: width 0.5s ease;
}

.forecast-kp {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-panel);
  border-radius: var(--radius-sm);
  margin-top: 4px;
}

.forecast-kp-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: normal;
}

.forecast-kp-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--aurora-green);
}

.forecast-temp {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: center;
}

.forecast-temp-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-panel);
  border-radius: var(--radius-sm);
}

.forecast-temp-item .forecast-label {
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.88rem;
}

.forecast-temp-item .forecast-value {
  font-size: 1.4rem;
  color: var(--text);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

/* ---------------------------------------------------------------
   Locations
------------------------------------------------------------------ */
.location-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.location-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.location-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.location-card h3 { font-size: 1.05rem; margin: 0; }

.drive-time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  white-space: nowrap;
}

.location-facing {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--aurora-green);
  margin: 10px 0 0;
}

.location-notes {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 10px 0 16px;
  flex-grow: 1;
}

.location-map-link { font-size: 0.85rem; font-weight: 600; }

/* ---------------------------------------------------------------
   Subscribe
------------------------------------------------------------------ */
.subscribe-panel { padding-bottom: 90px; }

.subscribe-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.subscribe-copy p { color: var(--text-muted); }

.subscribe-form { display: flex; flex-direction: column; gap: 18px; }

.contact-toggle {
  display: flex;
  gap: 0;
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 3px;
  width: fit-content;
}

.toggle-btn {
  padding: 9px 24px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn:hover { color: var(--text); }

.toggle-btn.active {
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  color: #0a1120;
  font-weight: 600;
}

.contact-fields { display: flex; flex-direction: column; gap: 18px; }

.field { display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; color: var(--text-muted); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.field input,
.field select {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 12px;
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
}

.field input::placeholder { color: var(--text-faint); }
.field small { color: var(--text-faint); font-size: 0.76rem; }

.btn-primary {
  margin-top: 4px;
  padding: 13px 20px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--aurora-green), var(--aurora-violet));
  color: #0a1120;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.btn-primary:hover { filter: brightness(1.08); }

.form-fineprint { color: var(--text-faint); font-size: 0.76rem; margin: 0; }

/* ---------------------------------------------------------------
   Flash messages
------------------------------------------------------------------ */
.flash-wrap { padding-top: 20px; }
.flash {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  margin-bottom: 10px;
}
.flash-success { background: rgba(69, 240, 179, 0.12); color: var(--aurora-green); border: 1px solid rgba(69, 240, 179, 0.3); }
.flash-error { background: rgba(255, 107, 107, 0.12); color: var(--red); border: 1px solid rgba(255, 107, 107, 0.3); }

/* ---------------------------------------------------------------
   Footer
------------------------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px 40px;
  position: relative;
  z-index: 1;
}
.footer-inner p { margin: 4px 0; color: var(--text-faint); font-size: 0.82rem; }

/* ---------------------------------------------------------------
   Responsive
------------------------------------------------------------------ */
@media (max-width: 860px) {
  .location-grid { grid-template-columns: repeat(2, 1fr); }
  .subscribe-inner { grid-template-columns: 1fr; padding: 28px; }
  .forecast-card { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 640px) {
  .site-nav { gap: 14px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .instrument-grid { grid-template-columns: 1fr; }
  .location-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  .forecast-card { padding: 24px; }
}