/**
 * Insolar Styles
 * Poster-like Editorial Design: Ambient backgrounds, large typography, minimal chrome
 */

/* CSS Custom Properties */
:root {
  /* Theme colors (set dynamically by JS) */
  --gradient-from: #FFE4B5;
  --gradient-to: #87CEEB;
  --text-primary: #1A1A2E;
  --text-secondary: rgba(26, 26, 46, 0.6);

  /* Subtle glass for rare use */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

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

body {
  font-family: var(--font-family);
  background: linear-gradient(180deg, var(--gradient-from) 0%, var(--gradient-to) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  min-height: 100dvh;
  transition: background 0.8s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  max-width: 420px;
  margin: 0 auto;
  padding: var(--spacing-md);
  padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Loading State */
.loading {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

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

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

/* Error State */
.error {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.error-message {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1rem;
  opacity: 0.8;
}

/* Warning Banner */
.warning {
  background: rgba(255, 193, 7, 0.2);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  margin-bottom: var(--spacing-md);
  font-size: 0.8rem;
  color: var(--text-primary);
  text-align: center;
  opacity: 0.9;
}

/* ==================== HERO ZONE ==================== */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-lg) 0;
  min-height: 55vh;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: auto;
  padding-bottom: var(--spacing-md);
}

.location-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.4rem 0;
  font-family: var(--font-family);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  text-align: left;
  display: flex;
  align-items: center;
}

.location-btn:hover {
  color: var(--text-primary);
}

.current-time {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.hero-headline {
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.02em;
}

.hero-temp {
  font-size: 7rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-bottom: var(--spacing-xs);
}

/* Solar Arc (below hourly strip) */
.solar-arc {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  padding: 0 var(--spacing-xs);
}

.solar-time {
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.solar-track {
  flex: 1;
  height: 4px;
  background: var(--glass-bg);
  border-radius: 2px;
  position: relative;
  overflow: visible;
}

.solar-progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--text-primary);
  border-radius: 2px;
  opacity: 0.4;
  transition: width 0.3s ease;
}

.solar-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: var(--text-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(0,0,0,0.15);
  transition: left 0.3s ease;
}

.hero-meta {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
  text-align: center;
}

/* ==================== HOURLY STRIP ==================== */
.hourly-section {
  margin: var(--spacing-md) calc(-1 * var(--spacing-md));
  padding: 0 var(--spacing-md);
}

.hourly-strip {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: var(--spacing-xs) 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.hourly-strip::-webkit-scrollbar {
  display: none;
}

.hour-item {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.6rem 0.5rem;
  min-width: 52px;
  scroll-snap-align: start;
  border-radius: 12px;
  transition: background 0.2s;
}

.hour-item.now {
  background: var(--glass-bg);
}

.hour-icon {
  font-size: 1.5rem;
  line-height: 1;
}

/* Weather SVG icons */
.weather-icon {
  width: 1.5em;
  height: 1.5em;
  vertical-align: middle;
  filter: var(--icon-filter, none);
}

.hour-time {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.hour-item.now .hour-time {
  color: var(--text-primary);
}

.hour-icon {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.hour-temp {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.hour-rain {
  font-size: 0.6rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  opacity: 0.8;
}

/* ==================== KEY MOMENTS ==================== */
.moments {
  padding: var(--spacing-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.moment {
  padding-left: var(--spacing-xs);
  border-left: 2px solid var(--glass-border);
}

.moment-time {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.moment-text {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.35;
}

.moment-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

/* ==================== TOMORROW (Expandable) ==================== */
.tomorrow {
  border-top: 1px solid var(--glass-border);
  margin-top: auto;
}

.tomorrow-header {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
  user-select: none;
}

.tomorrow-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-right: var(--spacing-sm);
}

.tomorrow-summary {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.tomorrow-temps {
  color: var(--text-secondary);
  margin-left: auto;
  font-size: 0.9rem;
}

.tomorrow-chevron {
  color: var(--text-secondary);
  opacity: 0.6;
  transition: transform 0.2s;
  margin-left: 0.5rem;
}

.tomorrow.expanded .tomorrow-chevron {
  transform: rotate(180deg);
}

/* Tomorrow hourly list (vertical) */
.tomorrow-hours {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.tomorrow.expanded .tomorrow-hours {
  max-height: 600px;
}

.tomorrow-hour {
  display: flex;
  align-items: center;
  padding: 0.6rem 0;
  border-top: 1px solid var(--glass-border);
}

.tomorrow-hour-time {
  font-size: 0.8rem;
  color: var(--text-secondary);
  width: 50px;
}

.tomorrow-hour-icon {
  font-size: 1rem;
  width: 30px;
  text-align: center;
}

.tomorrow-hour-temp {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  width: 45px;
  text-align: right;
}

.tomorrow-hour-rain {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
  min-width: 35px;
  text-align: right;
}

/* ==================== FRESHNESS FOOTER ==================== */
.freshness {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: var(--spacing-sm) 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.freshness-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #34C759;
}

.freshness.stale .freshness-dot {
  background: #FF9500;
}

.freshness.old .freshness-dot {
  background: #FF3B30;
}

.refresh-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  color: var(--text-secondary);
  opacity: 0.7;
  transition: opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.refresh-btn:hover {
  opacity: 1;
}

/* ==================== BUTTONS ==================== */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  border: none;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--glass-bg);
  color: var(--text-primary);
}

.btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--gradient-from);
}

.btn-primary:hover {
  opacity: 0.9;
}

/* ==================== MODALS ==================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-md);
}

.modal-content {
  max-width: 340px;
  width: 100%;
  text-align: center;
  background: linear-gradient(180deg, var(--gradient-from), var(--gradient-to));
  padding: var(--spacing-lg);
  border-radius: 20px;
}

.modal-content h2 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
  font-weight: 600;
}

.modal-content p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.modal-content .btn {
  width: 100%;
  margin-bottom: 0.5rem;
}

.modal-content .btn:last-child {
  margin-bottom: 0;
}

/* ==================== INPUT ==================== */
.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  font-family: var(--font-family);
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

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

.input:focus {
  outline: none;
  border-color: var(--text-primary);
  background: rgba(255, 255, 255, 0.3);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 380px) {
  #app {
    padding: var(--spacing-sm);
  }

  .hero-headline {
    font-size: 1.5rem;
  }

  .hero-temp {
    font-size: 5.5rem;
  }

  .hour-item {
    min-width: 46px;
    padding: 0.5rem 0.4rem;
  }

  .moment-text {
    font-size: 1rem;
  }
}

@media (min-height: 800px) {
  .hero {
    min-height: 50vh;
  }
}

/* Tall phones - more breathing room */
@media (min-height: 900px) {
  .hero {
    min-height: 45vh;
    padding: var(--spacing-xl) 0;
  }
  
  .moments {
    padding: var(--spacing-xl) 0;
  }
}