/* ==========================================================================
   SKYCAST — Aurora Sky design system
   Sections: 1. Reset & tokens  2. Theme variants  3. Weather backdrops
   4. Layout  5. Loading screen  6. Hero  7. Cards & typography
   8. Hourly / daily / charts  9. Forms & buttons  10. Nav
   11. Toasts & errors  12. Utilities  13. Responsive  14. Motion & a11y
   ========================================================================== */

/* ---------- 1. Reset & tokens ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background-color .4s ease, color .4s ease;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: var(--font-display); margin: 0; }
p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
button, input { font-family: inherit; color: inherit; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

:root {
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --accent-1: #7C9EFF;
  --accent-2: #A78BFA;
  --accent-3: #34D8C7;
  --accent-gradient: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-2) 55%, var(--accent-3) 100%);

  --danger: #FF6B6B;
  --warning: #FFB454;
  --success: #34D8A0;

  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --shadow-soft: 0 20px 60px -20px rgba(6, 10, 25, 0.55);
  --shadow-card: 0 12px 40px -18px rgba(6, 10, 25, 0.45);

  --ease: cubic-bezier(.22,.9,.32,1);
}

/* ---------- 2. Theme variants ---------- */
body[data-theme="dark"] {
  --bg: #0B1120;
  --bg-soft: #101a33;
  --card-bg: rgba(255,255,255,0.055);
  --card-bg-strong: rgba(255,255,255,0.09);
  --card-border: rgba(255,255,255,0.11);
  --text: #EDF1FF;
  --text-dim: #9AA4C7;
  --text-faint: #6B76A0;
  --input-bg: rgba(255,255,255,0.07);
  color-scheme: dark;
}
body[data-theme="light"] {
  --bg: #EEF3FF;
  --bg-soft: #E4ECFF;
  --card-bg: rgba(255,255,255,0.72);
  --card-bg-strong: rgba(255,255,255,0.92);
  --card-border: rgba(20,30,60,0.08);
  --text: #10162B;
  --text-dim: #4B5573;
  --text-faint: #7C87AA;
  --input-bg: rgba(15,23,42,0.05);
  color-scheme: light;
}

/* ---------- 3. Weather-reactive backdrops (behind everything) ---------- */
body {
  background-image: radial-gradient(1200px 700px at 15% -10%, var(--wx-glow-1, transparent), transparent 60%),
                     radial-gradient(1000px 700px at 100% 0%, var(--wx-glow-2, transparent), transparent 55%);
  background-color: var(--bg);
  background-attachment: fixed;
}
body[data-theme="dark"][data-weather="clear-day"]  { --wx-glow-1: rgba(255,196,102,.16); --wx-glow-2: rgba(124,158,255,.16); }
body[data-theme="dark"][data-weather="clear-night"]{ --wx-glow-1: rgba(124,158,255,.14); --wx-glow-2: rgba(167,139,250,.12); }
body[data-theme="dark"][data-weather="cloudy"]     { --wx-glow-1: rgba(154,164,199,.14); --wx-glow-2: rgba(124,158,255,.10); }
body[data-theme="dark"][data-weather="rain"]       { --wx-glow-1: rgba(52,131,216,.18); --wx-glow-2: rgba(52,216,199,.10); }
body[data-theme="dark"][data-weather="storm"]      { --wx-glow-1: rgba(90,60,160,.22); --wx-glow-2: rgba(20,20,40,.3); }
body[data-theme="dark"][data-weather="snow"]       { --wx-glow-1: rgba(180,210,255,.16); --wx-glow-2: rgba(167,139,250,.10); }
body[data-theme="dark"][data-weather="fog"]        { --wx-glow-1: rgba(154,164,180,.14); --wx-glow-2: rgba(124,134,158,.10); }

body[data-theme="light"][data-weather="clear-day"]  { --wx-glow-1: rgba(255,196,102,.30); --wx-glow-2: rgba(124,158,255,.20); }
body[data-theme="light"][data-weather="clear-night"]{ --wx-glow-1: rgba(124,158,255,.22); --wx-glow-2: rgba(167,139,250,.18); }
body[data-theme="light"][data-weather="cloudy"]     { --wx-glow-1: rgba(154,164,199,.22); --wx-glow-2: rgba(124,158,255,.14); }
body[data-theme="light"][data-weather="rain"]       { --wx-glow-1: rgba(52,131,216,.22); --wx-glow-2: rgba(52,216,199,.14); }
body[data-theme="light"][data-weather="storm"]      { --wx-glow-1: rgba(90,60,160,.20); --wx-glow-2: rgba(70,80,120,.18); }
body[data-theme="light"][data-weather="snow"]       { --wx-glow-1: rgba(180,210,255,.28); --wx-glow-2: rgba(167,139,250,.14); }
body[data-theme="light"][data-weather="fog"]        { --wx-glow-1: rgba(154,164,180,.20); --wx-glow-2: rgba(124,134,158,.14); }

/* ---------- 4. Layout ---------- */
.app { min-height: 100vh; display: flex; flex-direction: column; }

/* Several components (.app, .view, .btn, .fatal-error) declare their own
   `display` value for when they're shown — which, per the CSS cascade, would
   otherwise beat the browser's default `[hidden]{display:none}` UA rule.
   This keeps `hidden` authoritative everywhere in the app. */
[hidden] { display: none !important; }

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 20px;
  padding: 14px 28px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--card-border);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: .01em; }
.brand-mark { width: 30px; height: 30px; }

.topnav { display: none; gap: 4px; margin-left: 8px; }
.topnav-link {
  border: none; background: transparent; color: var(--text-dim);
  padding: 9px 16px; border-radius: var(--radius-pill); font-weight: 600; font-size: 14px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.topnav-link:hover { color: var(--text); background: var(--card-bg); }
.topnav-link.is-active { color: var(--bg); background: var(--accent-gradient); }

.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.main { flex: 1; padding: 20px 16px 96px; max-width: 1180px; margin: 0 auto; width: 100%; }
.view { display: flex; flex-direction: column; gap: 16px; animation: fade-up .35s var(--ease); }

.info-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }

/* ---------- 5. Loading screen ---------- */
.loading-screen {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px;
  background: radial-gradient(circle at 50% 30%, #182449 0%, #0B1120 65%);
  color: #EDF1FF;
  transition: opacity .5s var(--ease), visibility .5s var(--ease);
}
.loading-screen.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-mark { width: 72px; height: 72px; animation: float 2.6s ease-in-out infinite; }
.loading-cloud { width: 100%; height: 100%; filter: drop-shadow(0 10px 30px rgba(124,158,255,.35)); }
.loading-word { font-family: var(--font-display); font-weight: 700; font-size: 22px; letter-spacing: .22em; }
.loading-sub { font-size: 13px; color: #93a0c9; }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 28px 24px 24px;
  min-height: 380px;
  display: flex;
  /* Always a rich, dark-enough gradient for white hero text to stay legible —
     deliberately independent of the light/dark theme toggle, like a photo. */
  background: var(--hero-gradient, linear-gradient(160deg, #2E4FBF, #0B1120));
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255,255,255,0.14);
}

/* Per-condition hero gradients (theme-independent on purpose) */
body[data-weather="clear-day"]   { --hero-gradient: linear-gradient(160deg, #5B8DFF 0%, #7C9EFF 45%, #3E63D6 100%); }
body[data-weather="clear-night"] { --hero-gradient: linear-gradient(160deg, #232C5C 0%, #171B3D 55%, #0B1120 100%); }
body[data-weather="cloudy"]      { --hero-gradient: linear-gradient(160deg, #657493 0%, #48536E 60%, #333C52 100%); }
body[data-weather="rain"]        { --hero-gradient: linear-gradient(160deg, #2C4E82 0%, #1D3459 60%, #13233D 100%); }
body[data-weather="storm"]       { --hero-gradient: linear-gradient(160deg, #3A2C63 0%, #221A3B 55%, #120E20 100%); }
body[data-weather="snow"]        { --hero-gradient: linear-gradient(160deg, #7E97BE 0%, #54688F 55%, #37425E 100%); }
body[data-weather="fog"]         { --hero-gradient: linear-gradient(160deg, #6B7488 0%, #4B5266 55%, #33384A 100%); }
.sky-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 14px; width: 100%; color: #fff; }

.hero-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 6px 10px; }
.hero-location { display: flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 600; }
.fav-toggle {
  border: none; background: rgba(255,255,255,.14); color: #FFD166;
  width: 30px; height: 30px; border-radius: 50%; font-size: 15px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: transform .15s var(--ease), background .15s var(--ease);
}
.fav-toggle:hover { transform: scale(1.08); background: rgba(255,255,255,.22); }
.fav-toggle[aria-pressed="true"] { background: rgba(255,209,102,.22); }
.hero-date { font-size: 13px; color: rgba(255,255,255,.75); text-align: right; }

.hero-main { display: flex; align-items: center; gap: 18px; margin-top: 4px; }
.hero-icon { font-size: 68px; line-height: 1; filter: drop-shadow(0 8px 20px rgba(0,0,0,.25)); animation: float 4s ease-in-out infinite; }
.hero-temp {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(56px, 10vw, 96px); line-height: 1;
  background: linear-gradient(135deg, #fff, #cfe0ff 60%, #fff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-temp .deg { font-size: 0.4em; vertical-align: top; margin-left: 2px; -webkit-text-fill-color: rgba(255,255,255,.85); }

.hero-condition { font-size: 19px; font-weight: 600; }
.hero-feels { font-size: 14px; color: rgba(255,255,255,.78); margin-top: -8px; }

.hero-stats {
  margin-top: 10px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px;
  padding-top: 16px; border-top: 1px solid rgba(255,255,255,.16);
}
.hero-stat { display: flex; flex-direction: column; gap: 2px; }
.hs-label { font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: rgba(255,255,255,.6); }
.hs-value { font-weight: 700; font-size: 15px; }

.updated-row { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-faint); padding: 0 4px; }
.stale-flag { background: color-mix(in srgb, var(--warning) 22%, transparent); color: var(--warning); padding: 3px 10px; border-radius: var(--radius-pill); font-weight: 600; }

/* ---------- 7. Cards & typography ---------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  animation: fade-up .4s var(--ease);
}
.card-title { font-size: 15px; font-weight: 700; letter-spacing: .01em; margin-bottom: 12px; }
.card-title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-title-row .card-title { margin-bottom: 0; }
.hint { font-size: 12px; color: var(--text-faint); }

.summary-card p { color: var(--text-dim); line-height: 1.6; font-size: 14.5px; }
.mood-row { margin-top: 12px; }
.mood-badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: var(--radius-pill);
  background: var(--accent-gradient); color: #0B1120; font-weight: 700; font-size: 13px;
}

.rain-card p { color: var(--text-dim); font-size: 14.5px; line-height: 1.6; }

.alerts-stack { display: flex; flex-direction: column; gap: 10px; }
.alert-banner {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 14px 16px; border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--danger) 16%, var(--card-bg));
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  animation: fade-up .3s var(--ease);
}
.alert-banner .alert-glyph { font-size: 20px; }
.alert-banner strong { display: block; font-size: 14px; margin-bottom: 2px; }
.alert-banner span.desc { font-size: 13px; color: var(--text-dim); }

/* ---------- 8. Hourly / daily / charts / secondary cards ---------- */
.hourly-scroll {
  display: flex; gap: 10px; overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x proximity;
}
.hourly-scroll::-webkit-scrollbar { height: 6px; }
.hourly-scroll::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 999px; }
.hour-card {
  flex: 0 0 auto; width: 74px; scroll-snap-align: start;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 8px; border-radius: var(--radius-md);
  background: var(--card-bg-strong); border: 1px solid var(--card-border);
  transition: transform .15s var(--ease);
}
.hour-card:hover { transform: translateY(-3px); }
.hour-card.is-now { background: var(--accent-gradient); color: #0B1120; border-color: transparent; }
.hour-time { font-size: 11.5px; font-weight: 700; text-transform: uppercase; }
.hour-icon { font-size: 22px; }
.hour-temp { font-weight: 700; font-size: 14px; }
.hour-rain { font-size: 10.5px; opacity: .75; }

.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.timeline-slot { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 12px 6px; border-radius: var(--radius-md); background: var(--card-bg-strong); }
.timeline-slot .t-label { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .04em; }
.timeline-slot .t-icon { font-size: 22px; }
.timeline-slot .t-temp { font-weight: 700; font-size: 13.5px; }

.uv-value { font-family: var(--font-display); font-size: 40px; font-weight: 700; }
.uv-label { font-weight: 700; font-size: 13px; letter-spacing: .04em; text-transform: uppercase; color: var(--warning); margin-top: -4px; }
.uv-bar { height: 8px; border-radius: 999px; background: var(--input-bg); margin: 12px 0 10px; overflow: hidden; }
.uv-bar-fill { height: 100%; width: 0%; background: linear-gradient(90deg, #34D8A0, #FFD166, #FF6B6B); transition: width .6s var(--ease); }
.uv-tip { font-size: 13px; color: var(--text-dim); line-height: 1.5; }

.sun-arc-wrap { display: flex; justify-content: center; }
.sun-arc { width: 100%; max-width: 220px; color: var(--text-faint); }
.sun-times { display: flex; justify-content: space-between; margin-top: 8px; }
.sun-times > div { display: flex; flex-direction: column; gap: 2px; }
.sun-label { font-size: 12px; color: var(--text-faint); }
.sun-times strong, .sun-times span:last-child { font-weight: 700; }
#sunrise-time, #sunset-time { font-weight: 700; font-size: 14.5px; }

.compare-rows { display: flex; flex-direction: column; gap: 8px; }
.compare-row { display: flex; justify-content: space-between; font-size: 14px; color: var(--text-dim); }
.compare-row strong { color: var(--text); font-size: 16px; }
.compare-diff { margin-top: 10px; font-weight: 700; font-size: 14px; }

.env-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.env-item { padding: 12px; border-radius: var(--radius-md); background: var(--card-bg-strong); display: flex; flex-direction: column; gap: 4px; }
.env-item .e-label { font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .04em; }
.env-item .e-value { font-weight: 700; font-size: 16px; }

.daily-list { display: flex; flex-direction: column; gap: 4px; }
.daily-row {
  display: grid; grid-template-columns: 52px 24px minmax(0,1fr) minmax(0,1.35fr); align-items: center; gap: 8px;
  padding: 12px 4px; border-radius: var(--radius-sm);
  transition: background .15s var(--ease);
}
.daily-row:hover { background: var(--card-bg-strong); }
.daily-day { font-weight: 700; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.daily-icon { font-size: 18px; text-align: center; }
.daily-rain { font-size: 11.5px; color: var(--accent-1); justify-self: start; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.daily-range { display: flex; align-items: center; gap: 6px; font-size: 13px; font-variant-numeric: tabular-nums; min-width: 0; }
.daily-range span:first-child, .daily-range span:last-child { flex: 0 0 auto; }
.daily-bar { position: relative; flex: 1 1 auto; min-width: 24px; max-width: 70px; height: 4px; border-radius: 999px; background: var(--input-bg); overflow: hidden; }
.daily-bar span { position: absolute; top: 0; bottom: 0; border-radius: 999px; background: var(--accent-gradient); }

.chart-canvas { width: 100%; height: 160px; display: block; }

/* ---------- 9. Forms & buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius-pill); border: none;
  font-weight: 700; font-size: 14px; transition: transform .15s var(--ease), background .2s var(--ease), opacity .2s var(--ease);
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent-gradient); color: #0B1120; }
.btn-primary:hover { opacity: .92; }
.btn-ghost { background: var(--card-bg-strong); color: var(--text); border: 1px solid var(--card-border); }
.btn-ghost:hover { background: var(--card-bg); }
.full-width { width: 100%; margin-bottom: 14px; }

.icon-btn {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--card-border);
  background: var(--card-bg-strong); display: flex; align-items: center; justify-content: center; font-size: 16px;
  transition: background .2s var(--ease), transform .5s var(--ease);
}
.icon-btn:hover { background: var(--card-bg); }
.refresh-icon.is-spinning { display: inline-block; animation: spin .8s linear infinite; }

.search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--input-bg); border: 1px solid var(--card-border); border-radius: var(--radius-pill);
  padding: 10px 16px;
}
.search-icon { font-size: 14px; opacity: .7; }
.search-box input { flex: 1; border: none; background: transparent; outline: none; font-size: 14.5px; }
.search-results { margin-top: 10px; display: flex; flex-direction: column; gap: 4px; }
.result-row, .location-row, .favorite-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 14px; border-radius: var(--radius-md); background: var(--card-bg-strong);
}
.result-row + .result-row, .location-row + .location-row, .favorite-row + .favorite-row { margin-top: 6px; }
.result-main, .fav-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.result-title, .fav-title, .result-sub, .fav-sub { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.result-title, .fav-title { font-weight: 700; font-size: 14px; }
.result-sub, .fav-sub { font-size: 12px; color: var(--text-faint); }
.row-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.chip-btn {
  border: none; background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius-pill); padding: 7px 12px; font-size: 12.5px; font-weight: 600;
}
.chip-btn:hover { background: var(--card-bg-strong); }
.fav-weather { text-align: right; flex-shrink: 0; }
.fav-weather .f-temp { font-weight: 700; font-size: 18px; }
.fav-weather .f-cond { font-size: 11.5px; color: var(--text-faint); }

.locations-list { display: flex; flex-direction: column; gap: 6px; }
.empty-state { color: var(--text-faint); font-size: 13.5px; text-align: center; padding: 18px 8px; }

.segmented { display: flex; background: var(--input-bg); border-radius: var(--radius-pill); padding: 4px; gap: 4px; }
.segmented button {
  flex: 1; border: none; background: transparent; padding: 10px 8px; border-radius: var(--radius-pill);
  font-size: 13px; font-weight: 600; color: var(--text-dim); transition: background .2s var(--ease), color .2s var(--ease);
}
.segmented button[aria-checked="true"] { background: var(--accent-gradient); color: #0B1120; }

.switch-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; font-size: 14px; }
.switch-row + .switch-row { border-top: 1px solid var(--card-border); }
.switch { appearance: none; width: 42px; height: 24px; border-radius: 999px; background: var(--input-bg); position: relative; outline-offset: 3px; flex-shrink: 0; transition: background .2s var(--ease); }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .2s var(--ease); box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.switch:checked { background: var(--accent-gradient); }
.switch:checked::after { transform: translateX(18px); }

/* ---------- 10. Nav (mobile bottom bar) ---------- */
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: grid; grid-template-columns: repeat(5, 1fr);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(18px);
  border-top: 1px solid var(--card-border);
  padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
}
.bottom-link {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  border: none; background: transparent; color: var(--text-faint); font-size: 10.5px; padding: 6px 2px; border-radius: var(--radius-sm);
}
.bottom-link span { font-size: 19px; }
.bottom-link.is-active { color: var(--accent-1); }

/* ---------- 11. Toasts & full-screen errors ---------- */
.toast-stack { position: fixed; top: 14px; left: 50%; transform: translateX(-50%); z-index: 90; display: flex; flex-direction: column; gap: 8px; width: min(420px, 92vw); }
.toast {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: var(--radius-md);
  background: var(--card-bg-strong); border: 1px solid var(--card-border); box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px); font-size: 13.5px; animation: fade-down .3s var(--ease);
  color: var(--text);
}
.toast.toast-error { border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.toast.toast-success { border-color: color-mix(in srgb, var(--success) 45%, transparent); }

.fatal-error { position: fixed; inset: 0; z-index: 95; display: flex; align-items: center; justify-content: center; padding: 24px; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(10px); }
.fatal-card { max-width: 360px; text-align: center; padding: 34px 28px; border-radius: var(--radius-lg); background: var(--card-bg-strong); border: 1px solid var(--card-border); }
.fatal-glyph { font-size: 40px; margin-bottom: 10px; }
.fatal-card h1 { font-size: 19px; margin-bottom: 8px; }
.fatal-card p { color: var(--text-dim); font-size: 13.5px; margin-bottom: 20px; line-height: 1.6; }

/* ---------- 12. Utilities & animations ---------- */
@keyframes fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fade-down { from { opacity: 0; transform: translate(-50%,-8px); } to { opacity: 1; transform: translate(0,0); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-temp { 0% { opacity: 0; transform: translateY(6px) scale(.98); } 100% { opacity: 1; transform: translateY(0) scale(1); } }
.hero-temp { animation: pulse-temp .6s var(--ease); }

:focus-visible { outline: 2px solid var(--accent-1); outline-offset: 2px; border-radius: 6px; }

/* ---------- 13. Responsive ---------- */
@media (min-width: 640px) {
  .hero-stats { grid-template-columns: repeat(5, 1fr); }
  .info-grid { grid-template-columns: repeat(3, 1fr); }
  .timeline { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 900px) {
  .topnav { display: flex; }
  .bottom-nav { display: none; }
  .main { padding: 28px 32px 60px; }
  .env-grid { grid-template-columns: repeat(4, 1fr); }
  .hero { min-height: 420px; padding: 40px 40px 32px; }
}

@media (min-width: 1200px) {
  .main { max-width: 1280px; }
}

@media (max-width: 380px) {
  .topbar { padding: 12px 14px; gap: 10px; }
  .hero { padding: 22px 18px 20px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 14. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}