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

:root {
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --bg:        #0d1117;
  --surface:   rgba(255,255,255,0.06);
  --border:    rgba(255,255,255,0.10);
  --text:      #f0f4ff;
  --muted:     rgba(240,244,255,0.50);
  --accent:    #6ee7f7;
  --accent-2:  #a78bfa;
  --radius:    20px;
  --shadow:    0 8px 40px rgba(0,0,0,0.35);
}

html { font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.8s ease;
  position: relative;
  overflow-x: hidden;
}

/* ── Noise overlay ──────────────────────────────────────────────────────────── */
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 200px;
  opacity: .55;
  z-index: 0;
}

/* ── Backgrounds ────────────────────────────────────────────────────────────── */
.bg-default      { background: linear-gradient(135deg,#0d1117 0%,#1a2035 100%); }
.bg-sunny        { background: linear-gradient(145deg,#1a1000 0%,#3d2800 40%,#8c5c00 100%); }
.bg-cloudy       { background: linear-gradient(145deg,#111820 0%,#1f2d3d 50%,#2b3a4a 100%); }
.bg-rainy        { background: linear-gradient(145deg,#0d1520 0%,#0e2030 50%,#0a2540 100%); }
.bg-thunderstorm { background: linear-gradient(145deg,#0a0a15 0%,#150d28 50%,#1a0a30 100%); }
.bg-snowy        { background: linear-gradient(145deg,#0d1525 0%,#1a2535 50%,#202e3e 100%); }
.bg-foggy        { background: linear-gradient(145deg,#111318 0%,#1e2028 50%,#252830 100%); }

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-shrink: 0;
}
.logo-icon  { font-size: 1.4rem; color: var(--accent); }
.logo-text  { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; letter-spacing: -.03em; }

.search-form {
  flex: 1;
  display: flex;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color .2s;
}
.search-form:focus-within { border-color: var(--accent); }

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: .75rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
}
.search-input::placeholder { color: var(--muted); }

.search-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: .75rem 1.25rem;
  color: var(--accent);
  display: grid;
  place-items: center;
  transition: color .2s;
}
.search-btn:hover { color: #fff; }

/* ── Error ──────────────────────────────────────────────────────────────────── */
.error-card {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.3);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  color: #fca5a5;
  font-size: .95rem;
}
.error-icon { font-size: 1.2rem; }

/* ── Hero Prompt ────────────────────────────────────────────────────────────── */
.hero-prompt {
  text-align: center;
  padding: 5rem 1rem;
  animation: fadeUp .6s ease forwards;
}
.hero-icon { font-size: 4.5rem; margin-bottom: 1.5rem; }
.hero-prompt h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.04em;
  margin-bottom: 1rem;
}
.hero-prompt h1 em { color: var(--accent); font-style: normal; }
.hero-prompt p { color: var(--muted); font-size: 1.05rem; }

/* ── Weather Grid ───────────────────────────────────────────────────────────── */
.weather-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
  grid-template-areas:
    "main  stats"
    "forecast forecast";
  animation: fadeUp .5s ease forwards;
}

@media (max-width: 620px) {
  .weather-grid {
    grid-template-columns: 1fr;
    grid-template-areas: "main" "stats" "forecast";
  }
}

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.card-title {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 1.25rem;
}

/* Main Card */
.card-main {
  grid-area: main;
  position: relative;
  overflow: hidden;
}
.card-location {
  font-size: .9rem;
  color: var(--muted);
  margin-bottom: .5rem;
  display: flex;
  align-items: center;
  gap: .3rem;
}
.pin-icon { font-size: .85rem; }

.card-temp {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 6.5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, #fff 40%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-desc {
  font-size: 1rem;
  color: var(--muted);
  text-transform: capitalize;
  margin: .35rem 0 .2rem;
}
.card-feels { font-size: .85rem; color: var(--muted); }

.card-icon {
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 120px;
  opacity: .85;
  filter: drop-shadow(0 4px 20px rgba(110,231,247,.3));
}

/* Stats Card */
.card-stats { grid-area: stats; }

.stats-list { list-style: none; display: flex; flex-direction: column; gap: .75rem; }
.stats-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .9rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: .65rem;
}
.stats-list li:last-child { border-bottom: none; padding-bottom: 0; }
.stat-label { color: var(--muted); }
.stat-value { font-weight: 500; }
.stat-value em { font-style: normal; color: var(--accent); font-size: .8rem; margin-left: .2rem; }

/* Forecast Card */
.card-forecast { grid-area: forecast; }

.forecast-row {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-bottom: .25rem;
  scrollbar-width: none;
}
.forecast-row::-webkit-scrollbar { display: none; }

.forecast-day {
  flex: 1;
  min-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .15rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: .85rem .5rem;
  text-align: center;
  transition: background .2s;
}
.forecast-day:hover { background: rgba(255,255,255,0.08); }

.forecast-name { font-family: var(--font-display); font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.forecast-day img { width: 48px; }
.forecast-desc { font-size: .75rem; color: var(--muted); }
.forecast-temps { font-size: .85rem; font-weight: 500; }
.hi { color: #fff; }
.sep { color: var(--muted); margin: 0 .15rem; }
.lo { color: var(--muted); }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: .8rem;
}
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── Animations ─────────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}