/* ============================================
   Michigan Birding Report — Light Field Guide
   Warm cream base, forest accents, high contrast
   ============================================ */

:root {
  --bg: #faf8f3;
  --bg-alt: #f0ece2;
  --bg-card: #ffffff;
  --bg-dark: #1a2e1a;
  --text: #2c2c2c;
  --text-mid: #555;
  --text-light: #888;
  --forest: #1a5c2a;
  --forest-deep: #0f3a18;
  --forest-light: #e8f0ea;
  --gold: #b8860b;
  --gold-light: #d4a03c;
  --gold-bg: #fdf6e3;
  --accent: #c4785a;
  --sky: #2e7d9c;
  --border: #e0dbd0;
  --border-light: #ece8de;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);

  /* Backward-compatible aliases for sub-page dark hero sections */
  --cream: #f5f0e6;
  --cream-mid: #e8e0d0;
  --cream-dark: #9a9488;
  --forest-mid: #e8f0ea;
  --canopy: #1a5c2a;
  --gold-dim: #9a7209;
  --bark: #6b5a42;
  --dawn: #c4785a;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--forest); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--gold); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(165deg, var(--forest-deep) 0%, #163a1e 40%, #1a5c2a 100%);
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--forest) !important;
  letter-spacing: 0.1em;
}

.nav-links { display: flex; gap: 1.5rem; }
.nav-links a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.nav-links a:hover { color: var(--forest); }

.hero-content {
  max-width: 750px;
  margin: 0 auto;
  text-align: center;
  padding-top: 3rem;
  animation: fadeUp 0.8s ease-out;
}

.hero-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold-light);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  color: #fff;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.05rem;
  font-weight: 300;
  color: rgba(255,255,255,0.8);
  max-width: 520px;
  margin: 0 auto 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
}

.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold-light);
}
.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.4);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: bobDown 2s ease-in-out infinite;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes bobDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ---- SECTIONS ---- */
.section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-dark {
  max-width: 100%;
  background: var(--bg-alt);
}
.section-dark > * {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--forest-deep);
  margin-bottom: 0.4rem;
}

.section-sub {
  font-size: 0.95rem;
  color: var(--text-mid);
}

/* ---- FILTERS ---- */
.region-filters {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-mid);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.2s;
}

.filter-btn:hover { border-color: var(--forest); color: var(--text); }
.filter-btn.active {
  background: var(--forest);
  color: #fff;
  border-color: var(--forest);
  font-weight: 600;
}

/* ---- SIGHTINGS GRID ---- */
.sightings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.25rem;
}

.sighting-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow-sm);
  animation: fadeUp 0.4s ease-out both;
}

.sighting-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.sighting-img {
  width: 100%;
  height: 175px;
  object-fit: cover;
  background: var(--bg-alt);
  display: block;
}

.sighting-body {
  padding: 1rem 1.1rem;
}

.sighting-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.1rem;
}

.sighting-sci {
  font-style: italic;
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 0.6rem;
}

.sighting-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.72rem;
  color: var(--text-mid);
}

.sighting-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.meta-tag {
  background: var(--gold-bg);
  color: var(--gold);
  padding: 0.12rem 0.45rem;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---- SAGINAW BAY ---- */
.bay-hero { padding: 2rem 0; }

.bay-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.bay-content h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  color: var(--forest-deep);
  margin-bottom: 0.75rem;
}

.bay-desc {
  font-size: 1rem;
  color: var(--text-mid);
  max-width: 600px;
  margin-bottom: 1.5rem;
}

.bay-hotspots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.bay-hotspot-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 5px;
  padding: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.bay-hotspot-card:hover {
  border-color: var(--forest);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.bay-hotspot-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
}

.bay-hotspot-species { font-size: 0.78rem; color: var(--forest); font-weight: 500; }
.bay-hotspot-recent { font-size: 0.72rem; color: var(--text-light); margin-top: 0.2rem; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--forest);
  color: #fff;
  border: none;
}
.btn-primary:hover { background: var(--forest-deep); color: #fff !important; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--forest);
  color: var(--forest);
}
.btn-outline:hover { background: var(--forest); color: #fff !important; }

/* ---- MIGRATION ---- */
.migration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.migration-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.migration-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.6rem;
}

.migration-card p {
  font-size: 0.88rem;
  color: var(--text-mid);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.migration-season-note {
  text-align: center;
  margin-top: 1.5rem;
  padding: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-light);
  font-style: italic;
}

/* ---- REGIONS ---- */
.regions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  padding: 0 2rem;
}

.region-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 1.75rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.region-card:hover { border-color: var(--forest); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.region-card:active { transform: translateY(0); }

.region-icon { font-size: 1.8rem; margin-bottom: 0.75rem; }

.region-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--forest-deep);
  margin-bottom: 0.5rem;
}

.region-card p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.55;
}

.region-recent { margin-top: 0.75rem; }

/* ---- CALENDAR ---- */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1rem;
}

.calendar-item {
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--gold);
  background: var(--bg-card);
  border-radius: 0 5px 5px 0;
  box-shadow: var(--shadow-sm);
}

.calendar-months {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.calendar-event {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
}

.calendar-desc { font-size: 0.8rem; color: var(--text-mid); }

/* ---- FORECAST ---- */
.forecast-card {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text);
}

.forecast-card p { margin-bottom: 0.6rem; }
.forecast-card p:last-child { margin-bottom: 0; }

.forecast-meta {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.72rem;
  color: var(--text-light);
}

/* ---- GEAR ---- */
.gear-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.gear-card {
  display: block;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--text);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
}

.gear-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); color: var(--text); }

.gear-icon { font-size: 1.8rem; margin-bottom: 0.6rem; }

.gear-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.4rem;
}

.gear-card p {
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 1.5;
  margin-bottom: 0.6rem;
}

.gear-cta { font-size: 0.78rem; font-weight: 600; color: var(--gold); }

/* ---- LOADING ---- */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2.5rem;
  color: var(--text-light);
  grid-column: 1 / -1;
}

.loading-spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--forest);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-state {
  text-align: center;
  padding: 1.5rem;
  color: var(--accent);
  grid-column: 1 / -1;
}

/* ---- FOOTER ---- */
.footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--forest);
  margin-bottom: 0.4rem;
}

.footer-brand p {
  font-size: 0.78rem;
  color: var(--text-light);
  max-width: 480px;
  line-height: 1.5;
}

.footer-links { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-links a { font-size: 0.78rem; color: var(--text-mid); }

/* ---- PLACEHOLDER ---- */
.placeholder-img {
  width: 100%;
  height: 175px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--border);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { padding: 1.5rem; min-height: 75vh; }
  .hero-stats { gap: 1.5rem; }
  .stat-num { font-size: 1.8rem; }
  .nav-links { gap: 0.6rem; }
  .nav-links a { font-size: 0.65rem; }
  .section { padding: 2.5rem 1.25rem; }
  .sightings-grid { grid-template-columns: 1fr; }
  .regions-grid { grid-template-columns: 1fr; padding: 0; }
  .migration-grid { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; }
  .hero-scroll-hint { display: none; }
}

/* ---- Sub-page overrides for light theme ---- */
/* Profile/content sections on species, predictions, migration pages */
.profile-grid .profile-section {
  background: var(--bg-card);
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}
.profile-grid .profile-section h3 { color: var(--forest); }
.profile-grid .profile-section p { color: var(--text-mid); }

.map-section { color: var(--text); }
.map-section h2 { color: var(--forest-deep); }

.sounds-section h2 { color: var(--forest-deep); }

.fun-fact-box {
  background: var(--gold-bg) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}

/* Species hero stays dark, but right-now box adapts */
.right-now-box { color: #fff; }

/* Sighting rows in species page */
.sighting-row {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
}
.sighting-row .loc { color: var(--text) !important; }
.sighting-row .dt { color: var(--text-light) !important; }
.sighting-row .ct { color: var(--gold) !important; }

/* Sound cards */
.sound-card {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
}
.sound-info .type { color: var(--text) !important; }
.sound-info .meta { color: var(--text-light) !important; }
.sound-play { background: var(--forest) !important; }
.sound-play svg { fill: #fff !important; }

/* Prediction page cards */
.predict-card {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
  box-shadow: var(--shadow-sm);
}
.predict-card h3 { color: var(--forest) !important; }
.predict-card p { color: var(--text-mid) !important; }

.headline-box {
  background: var(--gold-bg) !important;
  border-left-color: var(--gold) !important;
  color: var(--text) !important;
}

/* Weather bar on predictions page */
.wx-bar {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
}
.wx-val { color: var(--forest) !important; }
.wx-label { color: var(--text-light) !important; }
.wx-forecast { color: var(--text-mid) !important; }

/* Ask about a bird */
.ask-input {
  background: var(--bg-card) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}
.ask-input:focus { border-color: var(--forest) !important; }
.ask-input::placeholder { color: var(--text-light) !important; }
.ask-btn { background: var(--forest) !important; color: #fff !important; }
.ask-btn:hover { background: var(--forest-deep) !important; }

.bird-answer {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
  box-shadow: var(--shadow-sm);
}
.bird-answer-name { color: var(--text) !important; }
.bird-answer-status { color: var(--forest) !important; }
.bird-answer-text { color: var(--text-mid) !important; }

.quick-ask {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
  color: var(--text-mid) !important;
}
.quick-ask:hover { border-color: var(--forest) !important; color: var(--text) !important; }

/* Migration page */
.season-status {
  background: var(--gold-bg) !important;
  color: var(--text) !important;
}
.season-label { color: var(--gold) !important; }

.dash-card {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
  box-shadow: var(--shadow-sm);
  color: var(--text) !important;
}
.dash-card:hover { border-color: var(--forest) !important; box-shadow: var(--shadow-md); }
.dash-card h3 { color: var(--forest) !important; }
.dash-card p { color: var(--text-mid) !important; }
.dash-card .dash-tag { color: var(--gold) !important; }

.timeline-title { color: var(--text) !important; }
.timeline-desc { color: var(--text-mid) !important; }

/* Condition badges - keep their own colors */
.condition-badge.positive { background: rgba(76,175,80,0.08) !important; color: #2e7d32 !important; }
.condition-badge.caution { background: rgba(255,193,7,0.08) !important; color: #f57f17 !important; }
.condition-badge.alert { background: rgba(244,67,54,0.08) !important; color: #c62828 !important; }
.condition-badge.info { background: rgba(46,125,156,0.08) !important; color: #2e7d9c !important; }

/* Bay page species list */
.species-item {
  background: var(--bg-card) !important;
  border-color: var(--border-light) !important;
}
.sp-name { color: var(--text) !important; }
.sp-meta { color: var(--text-mid) !important; }
.sp-loc { color: var(--gold) !important; }

/* Status badges on species page */
.status-badge { background: rgba(26,92,42,0.1) !important; color: var(--forest) !important; }

/* ---- Sub-page hero text (white on dark green) ---- */
.species-hero, .predict-hero, .mig-hero, .bay-page-hero { color: #fff; }
.species-hero h1, .predict-hero h1, .mig-hero h1, .bay-page-hero h1 { color: #fff; }
.species-hero .species-sci { color: rgba(255,255,255,0.7); }
.species-hero .back { color: var(--gold-light) !important; }
.right-now-box { color: #fff !important; }
.right-now-label { color: var(--gold-light) !important; }

/* Sub-page content text (dark on light) */
.hotspot-section h2 { color: var(--forest-deep); }
.hotspot-section > p { color: var(--text-mid); }
.mig-content > p { color: var(--text-mid); }
.predict-content { color: var(--text); }
.ask-section .sub { color: var(--text-mid) !important; }

/* Photos label */
.photos-label { color: var(--text-light) !important; }