:root {
  --bg-start: #0f1729;
  --bg-end: #1a2540;
  --card-bg: rgba(10, 14, 26, 0.55);
  --card-border: rgba(255, 255, 255, 0.14);
  --text-primary: #eef2ff;
  --text-secondary: #9aa5c4;
  --accent-temp: #fb923c;
  --accent-humidity: #38bdf8;
  --accent-wind: #34d399;
  --accent-rain: #818cf8;
  --accent-default: #f472b6;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: url('/img/huppel-drone.jpg?v=2') center center / cover no-repeat fixed;
  color: var(--text-primary);
  min-height: 100vh;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar__title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar__icon {
  font-size: 2rem;
}

.topbar__title h1 {
  font-size: 1.6rem;
  margin: 0;
  font-weight: 600;
}

.topbar__status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #64748b;
  box-shadow: 0 0 0 0 rgba(100, 116, 139, 0.6);
}

.status-dot.online {
  background: #4ade80;
  box-shadow: 0 0 8px 2px rgba(74, 222, 128, 0.6);
}

.status-dot.offline {
  background: #f87171;
  box-shadow: 0 0 8px 2px rgba(248, 113, 113, 0.6);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  padding: 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
  padding: 28px 20px;
}

.hero-card__label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-card__value {
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 1.1;
}

.hero-card__sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.hero-card--outdoor .hero-card__value {
  color: var(--accent-temp);
  text-shadow: 0 0 24px rgba(251, 146, 60, 0.35);
}

.hero-card--indoor {
  padding: 20px 16px;
}

.hero-card--indoor .hero-card__value {
  font-size: 2.2rem;
  color: #fcd34d;
}

@media (max-width: 600px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-card__value {
    font-size: 2.6rem;
  }

  .hero-card--indoor .hero-card__value {
    font-size: 1.9rem;
  }
}

.current-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

.metric-card__icon {
  font-size: 2rem;
  line-height: 1;
}

.metric-card__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-card__label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-card__value {
  font-size: 1.6rem;
  font-weight: 600;
}

.metric-card__sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.metric-card[data-metric="humidity"] .metric-card__value { color: var(--accent-humidity); }

.wind-compass {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wind-compass__n {
  position: absolute;
  top: 2px;
  font-size: 0.55rem;
  color: var(--text-secondary);
}

.wind-compass__arrow {
  display: inline-block;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--accent-wind);
  transform: rotate(0deg);
  transition: transform 0.4s ease;
}
.metric-card[data-metric="wind"] .metric-card__value { color: var(--accent-wind); }
.metric-card[data-metric="rain"] .metric-card__value { color: var(--accent-rain); }

.history__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.history__header h2 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 600;
}

.range-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 4px;
  gap: 4px;
}

.range-switch button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.range-switch button:hover {
  color: var(--text-primary);
}

.range-switch button.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
}

.chart-card h3 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.chart-card canvas {
  max-height: 280px;
}

footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-top: 40px;
}

@media (max-width: 600px) {
  .topbar__title h1 {
    font-size: 1.3rem;
  }

  .metric-card__value {
    font-size: 1.3rem;
  }
}