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

:root {
  --sky-deep:    #0b1120;
  --sky-mid:     #121e38;
  --sky-accent:  #1a2d52;
  --blue-glow:   #3b82f6;
  --blue-soft:   #60a5fa;
  --blue-pale:   #bfdbfe;
  --gold:        #f59e0b;
  --gold-light:  #fde68a;
  --white:       #ffffff;
  --text-main:   #e2e8f0;
  --text-muted:  #94a3b8;
  --text-dim:    #64748b;
  --card-bg:     rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.10);
  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   22px;
  --radius-xl:   32px;
  --shadow:      0 8px 32px rgba(0,0,0,0.4);
}

html { font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--sky-deep);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem 4rem;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(59,130,246,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 20%, rgba(99,102,241,0.10) 0%, transparent 60%);
}

/* ── APP WRAPPER ──────────────────────────────────────────────── */
.app {
  width: 100%;
  max-width: 520px;
}

/* ── HEADER ───────────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0 4px;
  margin-bottom: 2rem;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── SEARCH ───────────────────────────────────────────────────── */
.search-section { margin-bottom: 1.5rem; }

.search-form {
  display: flex;
  gap: 0;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color 0.2s;
}

.search-form:focus-within {
  border-color: var(--blue-glow);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  color: var(--white);
  min-width: 0;
}

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

.search-btn {
  background: var(--blue-glow);
  border: none;
  cursor: pointer;
  padding: 0 1.2rem;
  color: var(--white);
  display: flex;
  align-items: center;
  transition: background 0.2s;
}

.search-btn:hover { background: var(--blue-soft); }
.search-btn:active { transform: scale(0.97); }

/* ── CHIPS ────────────────────────────────────────────────────── */
.quick-cities {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.quick-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.chip {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.chip:hover {
  background: rgba(59,130,246,0.15);
  border-color: var(--blue-glow);
  color: var(--blue-pale);
}

/* ── ESTADOS ──────────────────────────────────────────────────── */
.state-empty,
.state-loading,
.state-error {
  text-align: center;
  padding: 3.5rem 1rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.error-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }

.state-error { color: #f87171; }

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--blue-glow);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 1rem;
}

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

.hidden { display: none !important; }

/* ── WEATHER CARD ─────────────────────────────────────────────── */
.weather-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  animation: fadeUp 0.35s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── CITY HEADER ──────────────────────────────────────────────── */
.city-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.city-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.country-name {
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.weather-icon-wrap {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
}

.weather-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(96,165,250,0.5));
}

/* ── TEMP BLOCK ───────────────────────────────────────────────── */
.temp-block {
  margin: 0.75rem 0 0.5rem;
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0;
}

.temp-main {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  letter-spacing: -0.04em;
}

.temp-unit {
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.condition-label {
  width: 100%;
  font-size: 1rem;
  color: var(--blue-soft);
  text-transform: capitalize;
  margin-top: 0.25rem;
}

.feels-like {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

/* ── STATS GRID ───────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.stat-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  transition: background 0.2s;
}

.stat-card:hover { background: rgba(59,130,246,0.08); }

.stat-icon { font-size: 1.1rem; }

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── SUN ROW ──────────────────────────────────────────────────── */
.sun-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.sun-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: 1;
}

.sun-emoji { font-size: 1.4rem; }

.sun-label {
  display: block;
  font-size: 0.68rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sun-time {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold-light);
}

.sun-divider {
  width: 1px;
  height: 36px;
  background: rgba(245,158,11,0.25);
}

/* ── UPDATE TIME ──────────────────────────────────────────────── */
.update-time {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-align: right;
  letter-spacing: 0.03em;
}

/* ── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 400px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .temp-main  { font-size: 3.5rem; }
  .city-name  { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .weather-card { animation: none; }
  .spinner      { animation-duration: 1.5s; }
}