/* ------------------------------------------------------------------
   solareclipse.info — design tokens
   Palette: cool observatory white, deep space-navy ink, solar gold,
   corona rust, slate accent. Display serif (Fraunces) for headlines,
   Inter for body copy, IBM Plex Mono for dates, figures and countdowns.
-------------------------------------------------------------------- */

:root {
  --bg: #F8FAFB;
  --bg-alt: #EEF3F7;
  --panel: #FFFFFF;
  --ink: #13223B;
  --ink-soft: #4A5A72;
  --ink-faint: #8494A8;
  --line: #DCE3EA;
  --gold: #F2A541;
  --gold-dim: #FBE3B8;
  --rust: #D3572E;
  --slate: #6C88A6;
  --focus: #1D6FA5;

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --max-width: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--focus); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.3rem, 4vw + 1rem, 3.6rem); font-weight: 500; }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.15rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; color: var(--ink-soft); }
p.lead { font-size: 1.15rem; color: var(--ink); }

.mono { font-family: var(--font-mono); letter-spacing: 0.01em; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header / nav ---------- */

header.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark { display: block; flex-shrink: 0; }

.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin-top: 1px;
}

nav.site-nav ul {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
}

nav.site-nav a {
  display: block;
  padding: 8px 14px;
  border-radius: 7px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

nav.site-nav a:hover { background: var(--bg-alt); color: var(--ink); }
nav.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--gold-dim);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  nav.site-nav {
    display: none;
    width: 100%;
    border-top: 1px solid var(--line);
  }
  nav.site-nav.open { display: block; }
  nav.site-nav ul { flex-direction: column; padding: 10px 0; }
  .nav-row { flex-wrap: wrap; }
}

/* ---------- Eclipse phase strip (signature element) ---------- */

.phase-strip {
  width: 100%;
  height: auto;
  display: block;
}

.phase-divider {
  padding: 18px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.phase-divider svg { display: block; margin: 0 auto; max-width: var(--max-width); width: 100%; height: 34px; }

/* ---------- Hero ---------- */

.hero {
  padding: 64px 0 40px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 14px;
  display: inline-block;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary { background: var(--ink); color: var(--panel); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(19,34,59,0.22); }
.btn-secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-secondary:hover { background: var(--bg-alt); }

/* ---------- Eclipse diagram / countdown ---------- */

.eclipse-visual {
  position: relative;
  background: linear-gradient(180deg, #0F1B30 0%, #16283F 100%);
  border-radius: 18px;
  padding: 34px 28px 26px;
  color: #EAF1F8;
  overflow: hidden;
}

.eclipse-visual svg { width: 100%; height: auto; display: block; }

.countdown {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  text-align: center;
}

.countdown .unit {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 10px 4px;
}

.countdown .num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold);
  display: block;
}

.countdown .label {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9FB2C6;
}

.eclipse-caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #9FB2C6;
  margin-top: 14px;
  text-align: center;
}

/* ---------- Sections / cards ---------- */

section { padding: 56px 0; }
section.alt { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { max-width: 680px; margin-bottom: 34px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 22px 20px;
}

.card .date {
  font-family: var(--font-mono);
  color: var(--rust);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  display: block;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.tag-total { background: #FCE7DD; color: var(--rust); }
.tag-annular { background: var(--gold-dim); color: #8A5B10; }
.tag-partial { background: #E4EBF2; color: var(--slate); }

/* ---------- Data table (Dates page) ---------- */

.eclipse-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.eclipse-table th, .eclipse-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.eclipse-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--bg-alt);
}

.eclipse-table td.date-cell { font-family: var(--font-mono); white-space: nowrap; }
.eclipse-table tr:last-child td { border-bottom: none; }

@media (max-width: 720px) {
  .eclipse-table { display: block; overflow-x: auto; white-space: nowrap; }
}

/* ---------- Safety notice ---------- */

.notice {
  border-left: 3px solid var(--rust);
  background: #FDF3EF;
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 22px 0;
}

.notice p:last-child { margin-bottom: 0; }
.notice strong { color: var(--ink); }

/* ---------- Definition blocks (Science page) ---------- */

.def-list { display: grid; gap: 26px; }
.def-list h3 { margin-bottom: 6px; }
.def-list .kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 780px) {
  .contact-grid { grid-template-columns: 1fr; }
}

form.contact-form { display: grid; gap: 14px; }

.field { display: grid; gap: 6px; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--ink); }

.field input, .field textarea {
  font: inherit;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
}

.field textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 0.85rem;
  color: var(--ink-faint);
}

/* ---------- Footer ---------- */

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 34px 0 40px;
  background: var(--bg-alt);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-grid nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer-grid a { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--ink); }

.footer-fine { color: var(--ink-faint); font-size: 0.82rem; margin-top: 18px; }