/* ============================================================
   Material Weather App - Design Tokens & Styles
   ============================================================ */

:root {
  /* ---- Material Design 3 Color Tokens ---- */
  --md-sys-color-primary: #1976d2;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-primary-container: #d4e6ff;
  --md-sys-color-on-primary-container: #004b8a;

  --md-sys-color-secondary: #5a6f8a;
  --md-sys-color-on-secondary: #ffffff;
  --md-sys-color-secondary-container: #dce3ee;
  --md-sys-color-on-secondary-container: #1a2b40;

  --md-sys-color-tertiary: #6f52a4;
  --md-sys-color-on-tertiary: #ffffff;
  --md-sys-color-tertiary-container: #eadcff;
  --md-sys-color-on-tertiary-container: #26115f;

  --md-sys-color-error: #b3261e;
  --md-sys-color-on-error: #ffffff;
  --md-sys-color-error-container: #f9dedc;
  --md-sys-color-on-error-container: #410002;

  --md-sys-color-surface: #fafcff;
  --md-sys-color-on-surface: #191d23;
  --md-sys-color-surface-variant: #e4e7ec;
  --md-sys-color-on-surface-variant: #444a57;

  --md-sys-color-surface-container: #eef2f7;
  --md-sys-color-surface-container-low: #f5f8fc;
  --md-sys-color-surface-container-high: #e5e8ef;
  --md-sys-color-surface-container-highest: #dde1e8;

  --md-sys-color-outline: #747983;
  --md-sys-color-outline-variant: #c4c7cf;

  --md-sys-color-inverse-surface: #2d3138;
  --md-sys-color-inverse-on-surface: #eef1f5;
  --md-sys-color-inverse-primary: #a9c7ff;

  --md-sys-color-scrim: rgba(0, 0, 0, 0.32);

  /* ---- Typography (Google Sans + Noto Sans SC fallback) ---- */
  --font-display: 'Google Sans', 'Google Sans Text', 'Roboto', 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Google Sans Text', 'Google Sans', 'Roboto', 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* ---- Sizing / Shape ---- */
  --shape-xs: 8px;
  --shape-sm: 12px;
  --shape-md: 16px;
  --shape-lg: 20px;
  --shape-xl: 28px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  --elevation-1: 0 1px 2px rgba(0, 30, 80, 0.08), 0 1px 3px rgba(0, 30, 80, 0.06);
  --elevation-2: 0 2px 6px rgba(0, 30, 80, 0.10), 0 2px 4px rgba(0, 30, 80, 0.08);
  --elevation-3: 0 4px 12px rgba(0, 30, 80, 0.12), 0 3px 8px rgba(0, 30, 80, 0.08);

  --app-max-width: 1100px;
  --bottom-nav-height: 80px;
  --top-bar-height: 72px;
}

body[data-theme='dark'] {
  --md-sys-color-primary: #a9c7ff;
  --md-sys-color-on-primary: #00326f;
  --md-sys-color-primary-container: #1976d2;
  --md-sys-color-on-primary-container: #dbe9ff;

  --md-sys-color-secondary: #bbc7db;
  --md-sys-color-on-secondary: #2f3b4e;
  --md-sys-color-secondary-container: #465266;
  --md-sys-color-on-secondary-container: #dbe3f0;

  --md-sys-color-tertiary: #d4bdff;
  --md-sys-color-on-tertiary: #3a2264;
  --md-sys-color-tertiary-container: #52368b;
  --md-sys-color-on-tertiary-container: #eadcff;

  --md-sys-color-error: #f2b8b5;
  --md-sys-color-on-error: #601410;
  --md-sys-color-error-container: #8c1d18;
  --md-sys-color-on-error-container: #f9dedc;

  --md-sys-color-surface: #101418;
  --md-sys-color-on-surface: #e6e9ef;
  --md-sys-color-surface-variant: #242930;
  --md-sys-color-on-surface-variant: #c4c7cf;

  --md-sys-color-surface-container: #1d222a;
  --md-sys-color-surface-container-low: #161a22;
  --md-sys-color-surface-container-high: #272c36;
  --md-sys-color-surface-container-highest: #323744;

  --md-sys-color-outline: #8e9199;
  --md-sys-color-outline-variant: #3c4049;

  --md-sys-color-inverse-surface: #e6e9ef;
  --md-sys-color-inverse-on-surface: #101418;
  --md-sys-color-inverse-primary: #1976d2;

  --md-sys-color-scrim: rgba(0, 0, 0, 0.55);

  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.25);
  --elevation-2: 0 2px 6px rgba(0, 0, 0, 0.40), 0 2px 4px rgba(0, 0, 0, 0.28);
  --elevation-3: 0 4px 12px rgba(0, 0, 0, 0.50), 0 3px 8px rgba(0, 0, 0, 0.38);
}

/* ============================================================
   Global reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--md-sys-color-on-surface);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--md-sys-color-primary) 4%, var(--md-sys-color-surface)) 0%,
    var(--md-sys-color-surface) 60%,
    var(--md-sys-color-surface) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body { overscroll-behavior-y: contain; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 500;
  margin: 0;
}

md-icon {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

/* ============================================================
   App shell layout
   ============================================================ */
.app-shell {
  max-width: var(--app-max-width);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0 var(--space-5) calc(var(--bottom-nav-height) + var(--space-5));
  position: relative;
}

/* ============================================================
   Top App Bar
   ============================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  margin: 0 calc(var(--space-5) * -1) var(--space-4);
  background: color-mix(in srgb, var(--md-sys-color-surface) 92%, transparent);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.app-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  justify-self: start;
}

.header-brand-icon {
  color: var(--md-sys-color-primary);
  font-size: 28px !important;
}

.app-header-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--md-sys-color-on-surface);
  white-space: nowrap;
}

.app-header-center {
  display: flex;
  justify-content: center;
  min-width: 0;
}

.app-header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-1);
  justify-self: end;
}

/* ---- City chip button (Material inspired) ---- */
.city-chip-btn {
  --md-filled-tonal-button-container-height: 44px;
  --md-filled-tonal-button-label-text-weight: 500;
  --md-filled-tonal-button-label-text-size: 14px;
  --md-filled-tonal-button-leading-space: 12px;
  --md-filled-tonal-button-trailing-space: 16px;
  white-space: nowrap;
}

.city-chip-btn #cityNameLabel {
  font-family: var(--font-display);
  font-weight: 500;
}

/* ============================================================
   Bottom Navigation (Material Web md-tabs)
   ============================================================ */
.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0 0 env(safe-area-inset-bottom, 0px);
  background: color-mix(in srgb, var(--md-sys-color-surface) 94%, transparent);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-top: 1px solid var(--md-sys-color-outline-variant);
}

.bottom-tabs {
  width: 100%;
  max-width: var(--app-max-width);
  --md-primary-tab-container-color: transparent;
  --md-primary-tab-active-indicator-color: var(--md-sys-color-primary);
  --md-primary-tab-active-indicator-height: 3px;
  --md-primary-tab-active-indicator-shape: 0 0 9999px 9999px / 0 0 3px 3px;
  --md-primary-tab-label-text-color: var(--md-sys-color-on-surface-variant);
  --md-primary-tab-active-label-text-color: var(--md-sys-color-primary);
  --md-primary-tab-icon-color: var(--md-sys-color-on-surface-variant);
  --md-primary-tab-active-icon-color: var(--md-sys-color-primary);
  --md-primary-tab-hover-state-layer-color: var(--md-sys-color-primary);
  --md-primary-tab-hover-state-layer-opacity: 0.08;
  --md-primary-tab-focus-state-layer-color: var(--md-sys-color-primary);
  --md-primary-tab-focus-state-layer-opacity: 0.12;
  --md-primary-tab-label-text-size: 12px;
  --md-primary-tab-label-text-weight: 500;
  --md-primary-tab-container-height: 72px;
}

.bottom-tabs md-primary-tab {
  min-height: 72px;
  padding: 0 8px;
}

/* ============================================================
   Content base
   ============================================================ */
.app-content {
  flex: 1;
  display: block;
  animation: fade-in-up 280ms cubic-bezier(0.2, 0, 0, 1);
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Section title
   ============================================================ */
.section-title-block {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  padding: 0 2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  letter-spacing: -0.005em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.section-title md-icon {
  color: var(--md-sys-color-primary);
  font-size: 22px !important;
}

.section-subtitle {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
}

/* ============================================================
   Cards
   ============================================================ */
.material-card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-lg);
  border: 1px solid var(--md-sys-color-outline-variant);
  padding: var(--space-5);
  box-shadow: var(--elevation-1);
  transition: box-shadow 200ms ease, transform 200ms ease;
  margin-bottom: var(--space-4);
}

.material-card.hero-card {
  background: linear-gradient(145deg,
    color-mix(in srgb, var(--md-sys-color-primary) 12%, var(--md-sys-color-surface)) 0%,
    color-mix(in srgb, var(--md-sys-color-primary-container) 60%, var(--md-sys-color-surface)) 100%);
  border-color: color-mix(in srgb, var(--md-sys-color-primary) 35%, var(--md-sys-color-outline-variant));
}

.material-card.compact { padding: var(--space-4); }

/* ============================================================
   Weather hero
   ============================================================ */
.weather-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-5);
}

.weather-hero-left { min-width: 0; }

.weather-hero-location {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 8px;
}

.weather-hero-location md-icon {
  font-size: 16px !important;
  color: var(--md-sys-color-primary);
}

.weather-temp-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.temp-hero {
  font-family: var(--font-display);
  font-size: 88px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--md-sys-color-on-surface);
  flex-shrink: 0;
}

.temp-hero-unit {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 8px;
}

.weather-hero-icon {
  font-size: 64px !important;
  color: var(--md-sys-color-primary);
  margin-top: 8px;
  filter: drop-shadow(0 4px 14px color-mix(in srgb, var(--md-sys-color-primary) 35%, transparent));
}

.weather-hero-desc {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
}

.weather-hero-feel {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: var(--space-3);
}

.weather-high-low {
  display: flex;
  gap: 20px;
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
}

.weather-high-low .high { color: var(--md-sys-color-error); }
.weather-high-low .low  { color: var(--md-sys-color-primary); }
.weather-high-low md-icon { font-size: 16px !important; vertical-align: -2px; margin-right: 4px; }

/* Side metrics */
.weather-side-metrics {
  display: grid;
  gap: 10px;
}

.side-metric {
  display: flex;
  align-items: center;
  gap: 12px;
  background: color-mix(in srgb, var(--md-sys-color-on-primary) 8%, var(--md-sys-color-primary-container));
  padding: 10px 16px;
  border-radius: var(--shape-md);
  min-width: 180px;
}

.side-metric md-icon {
  color: var(--md-sys-color-primary);
  font-size: 22px !important;
}

.side-metric-label {
  font-size: 12px;
  color: var(--md-sys-color-on-primary-container);
  opacity: 0.8;
  font-weight: 500;
}

.side-metric-value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--md-sys-color-on-primary-container);
}

/* ============================================================
   Metric tiles (3-column grid)
   ============================================================ */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: var(--space-5);
}

.metric-tile {
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--shape-md);
  padding: 16px;
  box-shadow: var(--elevation-1);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.metric-tile:hover {
  transform: translateY(-1px);
  box-shadow: var(--elevation-2);
}

.metric-header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: none;
}

.metric-header md-icon {
  color: var(--md-sys-color-primary);
  font-size: 18px !important;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  line-height: 1.1;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.metric-value small {
  font-size: 12px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  margin-left: 6px;
  font-family: var(--font-body);
}

.metric-sub {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 6px;
}

/* ============================================================
   Hourly forecast
   ============================================================ */
.hourly-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 2px 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--md-sys-color-outline) transparent;
}

.hourly-scroll::-webkit-scrollbar { height: 6px; }
.hourly-scroll::-webkit-scrollbar-track { background: transparent; }
.hourly-scroll::-webkit-scrollbar-thumb {
  background: var(--md-sys-color-outline);
  border-radius: 9999px;
}

.hourly-item {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-md);
  min-width: 80px;
  border: 1px solid transparent;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
  cursor: default;
}

.hourly-item:hover {
  background: var(--md-sys-color-primary-container);
  transform: translateY(-1px);
}

.hourly-item.active {
  background: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
}

.hourly-time {
  font-size: 12px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
}

.hourly-icon {
  font-size: 26px !important;
  color: var(--md-sys-color-primary);
}

.hourly-temp {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.hourly-precip {
  font-size: 10px;
  color: var(--md-sys-color-primary);
  font-weight: 500;
}

/* ============================================================
   Daily forecast list
   ============================================================ */
.daily-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.daily-row {
  display: grid;
  grid-template-columns: 100px 48px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-md);
  transition: background-color 180ms ease;
}

.daily-row:hover {
  background: var(--md-sys-color-surface-container-high);
}

.daily-row.today {
  background: var(--md-sys-color-primary-container);
  border: 1px solid color-mix(in srgb, var(--md-sys-color-primary) 40%, transparent);
}

.daily-day-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.daily-day-name {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.daily-date-name {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}

.daily-icon-col { display: flex; justify-content: center; }

.daily-icon {
  font-size: 28px !important;
  color: var(--md-sys-color-primary);
}

.daily-desc {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
}

.temp-bar-container {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  margin-top: 4px;
}

.temp-bar-low {
  color: var(--md-sys-color-on-surface-variant);
  min-width: 38px;
  text-align: right;
}

.temp-bar-track {
  position: relative;
  flex: 1;
  height: 6px;
  background: var(--md-sys-color-outline-variant);
  border-radius: 9999px;
  overflow: hidden;
  min-width: 50px;
}

.temp-bar-fill {
  position: absolute;
  top: 0;
  height: 100%;
  left: 15%;
  right: 15%;
  background: linear-gradient(90deg,
    color-mix(in srgb, #42a5f5 80%, var(--md-sys-color-primary)),
    #ffca28, #ef5350);
  border-radius: 9999px;
}

.temp-bar-high { color: var(--md-sys-color-error); min-width: 38px; }

/* ============================================================
   Favorites / Cities
   ============================================================ */
.fav-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.fav-city-card {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: var(--space-3);
  padding: 16px 20px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-md);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--elevation-1);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  cursor: pointer;
}

.fav-city-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--elevation-2);
  border-color: var(--md-sys-color-primary);
}

.fav-city-card:active { transform: translateY(0); }

.fav-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }

.fav-city-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.fav-city-sub {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
}

.fav-temp {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  gap: 8px;
}

.fav-temp md-icon {
  color: var(--md-sys-color-primary);
  font-size: 24px !important;
}

/* ============================================================
   Settings
   ============================================================ */
.settings-group {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-md);
  padding: var(--space-5);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--elevation-1);
  margin-bottom: var(--space-4);
}

.settings-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin-bottom: var(--space-3);
}

.settings-group-title md-icon {
  color: var(--md-sys-color-primary);
  font-size: 22px !important;
}

.settings-option-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.settings-option-row:last-child { margin-bottom: 0; }

.settings-option-label {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
  margin-bottom: 2px;
}

/* ---- Material buttons sizing (taller + roomy for text) ---- */
md-filled-button,
md-filled-tonal-button,
md-text-button {
  --md-filled-button-container-height: 48px;
  --md-filled-tonal-button-container-height: 48px;
  --md-text-button-container-height: 48px;
  --md-filled-button-label-text-size: 14px;
  --md-filled-tonal-button-label-text-size: 14px;
  --md-text-button-label-text-size: 14px;
  --md-filled-button-label-text-weight: 500;
  --md-filled-tonal-button-label-text-weight: 500;
  --md-text-button-label-text-weight: 500;
  --md-filled-button-leading-space: 16px;
  --md-filled-button-trailing-space: 24px;
  --md-filled-tonal-button-leading-space: 16px;
  --md-filled-tonal-button-trailing-space: 24px;
  --md-text-button-leading-space: 12px;
  --md-text-button-trailing-space: 16px;
}

/* Wider button row for settings */
.settings-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.settings-buttons md-filled-button,
.settings-buttons md-filled-tonal-button {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
}

/* ---- Large primary action (Add favorite / Pick city) ---- */
.action-wide {
  --md-filled-button-container-height: 52px;
  --md-filled-tonal-button-container-height: 52px;
  --md-filled-button-label-text-size: 15px;
  --md-filled-tonal-button-label-text-size: 15px;
  --md-filled-button-leading-space: 20px;
  --md-filled-button-trailing-space: 28px;
  --md-filled-tonal-button-leading-space: 20px;
  --md-filled-tonal-button-trailing-space: 28px;
  white-space: nowrap;
}

/* ============================================================
   Empty + loading states
   ============================================================ */
.empty-state, .loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  gap: 16px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--shape-lg);
  border: 1px dashed var(--md-sys-color-outline-variant);
}

.empty-state md-icon, .loading-state md-icon {
  font-size: 64px !important;
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.7;
}

.empty-state h3, .loading-state h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0;
}

.empty-state p, .loading-state p {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 14px;
  margin: 0;
  max-width: 420px;
}

.spinner {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid var(--md-sys-color-outline-variant);
  border-top-color: var(--md-sys-color-primary);
  animation: spin 0.8s linear infinite;
}

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

/* ============================================================
   Dialogs
   ============================================================ */
.city-dialog {
  --md-dialog-container-color: var(--md-sys-color-surface);
  --md-dialog-container-shape: 28px;
}

.city-dialog-headline,
.dialog-headline {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 24px 8px;
}

.dialog-headline-icon {
  color: var(--md-sys-color-primary);
  font-size: 28px !important;
  margin-top: 2px;
  flex-shrink: 0;
}

.dialog-headline-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  line-height: 1.3;
}

.dialog-headline-subtitle {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 2px;
}

.dialog-close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
}

.city-dialog-content {
  padding: 8px 24px 16px !important;
  min-width: min(520px, calc(100vw - 48px));
  max-width: 560px;
  max-height: 70vh;
  overflow-y: auto;
}

.city-search-wrapper {
  margin-bottom: 12px;
}

.city-search-field {
  width: 100%;
  --md-outlined-field-container-shape: 28px;
}

/* Breadcrumb */
.city-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 13px;
}

.breadcrumb-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface-variant);
  border-radius: 9999px;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 150ms ease, color 150ms ease;
  user-select: none;
  border: 1px solid var(--md-sys-color-outline-variant);
  font-family: var(--font-display);
}

.breadcrumb-chip:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: transparent;
}

.breadcrumb-chip.active {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: transparent;
}

.breadcrumb-chip md-icon {
  font-size: 16px !important;
}

.breadcrumb-sep {
  color: var(--md-sys-color-outline);
  font-size: 16px;
}

/* Country grid */
.country-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 8px;
}

.country-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 12px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--shape-md);
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
  text-align: center;
}

.country-tile:hover {
  background: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
  transform: translateY(-1px);
}

.country-tile md-icon {
  font-size: 28px !important;
  color: var(--md-sys-color-primary);
}

.country-tile-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  line-height: 1.3;
}

/* City / Region list items - clean simple rows */
.city-dialog-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.city-list-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--md-sys-color-surface-container);
  border-radius: var(--shape-sm);
  cursor: pointer;
  transition: background-color 140ms ease, transform 120ms ease, border-color 140ms ease;
  border: 1px solid transparent;
}

.city-list-item:hover {
  background: var(--md-sys-color-primary-container);
  border-color: color-mix(in srgb, var(--md-sys-color-primary) 30%, transparent);
}

.city-list-item md-icon {
  color: var(--md-sys-color-primary);
  font-size: 22px !important;
  flex-shrink: 0;
}

.city-list-item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.city-list-item-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.city-list-item-sub {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
}

/* Empty list state */
.city-dialog-empty {
  padding: 40px 16px;
  text-align: center;
}

.city-dialog-empty .empty-icon {
  font-size: 48px !important;
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.6;
  margin-bottom: 12px;
}

.empty-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
}

.empty-subtitle {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
}

/* Dialog actions */
.city-dialog-actions,
.dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 8px 24px 20px;
  flex-wrap: wrap;
}

/* Error dialog */
.dialog-content {
  padding: 0 24px 8px !important;
}

.dialog-info-box {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--shape-sm);
  padding: 12px 16px;
  margin: 8px 0 12px;
}

.dialog-info-box .info-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
}

.dialog-info-box .info-label {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
  font-weight: 500;
}

.dialog-info-box .info-value {
  color: var(--md-sys-color-on-surface);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-display);
}

.dialog-hint {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .app-shell {
    padding: 0 var(--space-4) calc(var(--bottom-nav-height) + var(--space-4));
  }

  .app-header {
    padding: var(--space-3) var(--space-4);
    margin: 0 calc(var(--space-4) * -1) var(--space-4);
    grid-template-columns: 1fr auto;
    gap: var(--space-2);
  }

  .app-header-left { grid-row: 1; grid-column: 1; }
  .app-header-center { grid-row: 2; grid-column: 1 / -1; width: 100%; }
  .app-header-right { grid-row: 1; grid-column: 2; }

  .app-header-title { font-size: 18px; }

  .weather-hero {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .weather-side-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .side-metric {
    min-width: 0;
    padding: 12px;
  }

  .temp-hero { font-size: 72px; }
  .weather-hero-icon { font-size: 48px !important; }

  .metrics-grid { grid-template-columns: repeat(2, 1fr); }

  .daily-row {
    grid-template-columns: 90px 44px 1fr auto;
    gap: 10px;
    padding: 12px 14px;
  }
}

@media (max-width: 560px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-value { font-size: 22px; }
  .temp-hero { font-size: 64px; }
  .weather-side-metrics { grid-template-columns: 1fr 1fr; }
  .bottom-tabs md-primary-tab { min-height: 68px; }

  .city-chip-btn {
    --md-filled-tonal-button-container-height: 40px;
    --md-filled-tonal-button-label-text-size: 13px;
    width: 100%;
  }
}

@media (min-width: 901px) {
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
}

/* High-contrast / reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* Scrollbar aesthetics for wider screens */
@media (min-width: 1024px) {
  ::-webkit-scrollbar { width: 8px; height: 8px; }
  ::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline);
    border-radius: 9999px;
    opacity: 0.5;
  }
  ::-webkit-scrollbar-track { background: transparent; }
}