/* ═══════════════════════════════════════════════════
   GLOBAL WEATHER DASHBOARD
   Palette: Deep Space × Neon Accents
   Fonts: Syne (display) + Outfit (body)
═══════════════════════════════════════════════════ */

:root {
  --bg:           #080c14;
  --bg2:          #0d1220;
  --bg3:          #111827;
  --surface:      rgba(255,255,255,0.04);
  --surface-hover:rgba(255,255,255,0.07);
  --border:       rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);

  --cyan:    #38bdf8;
  --blue:    #6366f1;
  --purple:  #a78bfa;
  --green:   #34d399;
  --orange:  #fb923c;
  --red:     #f87171;
  --yellow:  #fbbf24;

  --text:    #f1f5f9;
  --text-2:  #94a3b8;
  --text-3:  #475569;

  --radius:  16px;
  --radius-sm: 10px;
  --shadow:  0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* ── Background Orbs ── */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
  animation: drift 20s ease-in-out infinite alternate;
}

.orb-1 {
  width: 600px; height: 600px;
  background: var(--blue);
  top: -200px; left: -100px;
  animation-duration: 22s;
}

.orb-2 {
  width: 500px; height: 500px;
  background: var(--cyan);
  top: 30%; right: -150px;
  animation-duration: 18s;
  animation-delay: -8s;
}

.orb-3 {
  width: 400px; height: 400px;
  background: var(--purple);
  bottom: -100px; left: 40%;
  animation-duration: 25s;
  animation-delay: -12s;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.08); }
}

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(56,189,248,0.5));
}

.brand-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-3);
  font-weight: 400;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Search */
.search-wrap {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-3);
  pointer-events: none;
}

.search-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  padding: 8px 16px 8px 36px;
  width: 200px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input::placeholder { color: var(--text-3); }

.search-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.12);
}

/* Unit toggle */
.unit-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 3px;
  gap: 2px;
}

.unit-btn {
  background: transparent;
  border: none;
  color: var(--text-2);
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
}

.unit-btn.active {
  background: var(--cyan);
  color: var(--bg);
}

.unit-btn:not(.active):hover {
  color: var(--text);
  background: var(--surface-hover);
}

/* Refresh button */
.refresh-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-2);
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
  transition: all 0.2s;
}

.refresh-btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.refresh-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.refresh-btn.spinning svg {
  animation: spin 0.8s linear infinite;
}

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

/* Auto-refresh progress bar */
.refresh-bar-wrap {
  height: 2px;
  background: transparent;
  overflow: hidden;
}

.refresh-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  width: 100%;
  transform-origin: left;
  animation: shrink 60s linear forwards;
}

@keyframes shrink {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ── Main ── */
.main {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 32px 64px;
}

/* Meta row */
.meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.meta-text {
  font-size: 0.78rem;
  color: var(--text-3);
}

.meta-sep { color: var(--text-3); font-size: 0.7rem; }

.meta-link {
  color: var(--cyan);
  font-weight: 500;
}

/* ── Cards Grid ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

/* ── Weather Card ── */
.weather-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  animation: cardIn 0.4s ease both;
  position: relative;
  overflow: hidden;
}

.weather-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 60%);
  pointer-events: none;
}

.weather-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Card header */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.city-info {}

.city-name {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.city-country {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.country-flag {
  font-size: 1rem;
}

.weather-emoji {
  font-size: 2.8rem;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

/* Temperature */
.temp-block {
  margin-bottom: 16px;
}

.temp-main {
  font-family: 'Syne', sans-serif;
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
}

.temp-unit {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-2);
}

.temp-alt {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: 4px;
}

.condition-label {
  font-size: 0.9rem;
  color: var(--text-2);
  font-weight: 500;
  margin-bottom: 20px;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stat-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 3px;
}

.stat-value {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.stat-icon {
  font-size: 0.85rem;
  margin-right: 3px;
}

/* Card accent bar */
.card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
}

.accent-clear   { background: linear-gradient(90deg, var(--yellow), var(--orange)); }
.accent-cloudy  { background: linear-gradient(90deg, var(--text-3), var(--text-2)); }
.accent-rain    { background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.accent-snow    { background: linear-gradient(90deg, #e0f2fe, var(--cyan)); }
.accent-storm   { background: linear-gradient(90deg, var(--purple), var(--red)); }
.accent-fog     { background: linear-gradient(90deg, var(--text-3), #64748b); }

/* Feels like badge */
.feels-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text-3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 3px 10px;
  margin-bottom: 16px;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-3);
}

.empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 16px;
}

.empty-state p {
  font-size: 1rem;
}

/* ── Export Row ── */
.export-row {
  display: flex;
  justify-content: center;
  margin-top: 8px;
}

.export-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-2);
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 24px;
  cursor: pointer;
  transition: all 0.2s;
}

.export-btn svg {
  width: 16px;
  height: 16px;
}

.export-btn:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 20px rgba(52,211,153,0.15);
}

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 24px 32px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-3);
}

/* ── Skeleton Loading ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, rgba(255,255,255,0.07) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .header-inner { padding: 14px 20px; }
  .main { padding: 24px 20px 48px; }
  .search-input { width: 160px; }
  .cards-grid { grid-template-columns: 1fr; }
  .brand-title { font-size: 1.2rem; }
}

@media (max-width: 480px) {
  .header-controls { width: 100%; justify-content: space-between; }
  .search-input { width: 140px; }
}