/* ═══════════════════════════════════════════════════════════
   World.One 2.0 — Reusable Components (Redesigned)
   Apple-Level Design System
   ═══════════════════════════════════════════════════════════ */

/* ─── Top Bar ─── */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--space-md);
  background: rgba(10, 10, 15, 0.75);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.top-bar.is-visible { opacity: 1; transform: translateY(0); }
.top-bar__left { display: flex; align-items: center; gap: 8px; }
.top-bar__brand { font-size: 10px; font-weight: 700; letter-spacing: 0.15em; color: var(--text-primary); }
.top-bar__version { font-size: 9px; color: var(--text-muted); padding: 1px 5px; background: rgba(255,255,255,0.06); border-radius: 3px; font-family: var(--font-mono); }
.top-bar__right { display: flex; align-items: center; gap: var(--space-sm); }

/* ─── Section Header ─── */
.section-header { margin-bottom: var(--space-lg); }
.section-label {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  padding: 4px 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.06);
}
.section-desc {
  font-size: var(--text-body);
  color: var(--text-secondary);
  max-width: 620px;
  margin-top: var(--space-xs);
  line-height: 1.65;
}

/* ─── Data Card ─── */
.data-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--space-md);
  transition: all var(--duration-normal) var(--ease-out-quart);
  position: relative;
  overflow: hidden;
}
.data-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.data-card--featured {
  border-color: rgba(0,212,255,0.12);
  background: linear-gradient(135deg, rgba(0,212,255,0.04), rgba(0,212,255,0.01));
}
.data-card--compact { padding: var(--space-sm) var(--space-md); text-align: center; }
.data-card__header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-sm); gap: var(--space-xs); flex-wrap: wrap;
}
.data-card__label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
}
.data-card__source {
  font-size: 9px; color: var(--text-muted); padding: 2px 6px;
  background: rgba(255,255,255,0.04); border-radius: 3px; font-family: var(--font-mono);
}
.data-card__hero { margin: var(--space-sm) 0; }
.data-card__value {
  font-family: var(--font-mono); font-size: clamp(2rem,5vw,3.5rem);
  font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1;
}
.data-card__value--sm { font-size: clamp(1.4rem,3vw,1.8rem); }
.data-card__explain {
  font-size: var(--text-label); color: var(--text-secondary);
  line-height: 1.5; display: block; margin-top: var(--space-xs);
}
.data-card__mini-context { font-size: 10px; color: var(--text-muted); margin-top: 4px; }
.data-card__sparkline { margin-top: var(--space-sm); height: 40px; overflow: hidden; }
.data-card__trend {
  font-size: 10px; font-weight: 700; font-family: var(--font-mono);
  padding: 2px 8px; border-radius: 4px;
}
.data-card__trend--up { color: #34c759; background: rgba(52,199,89,0.1); }
.data-card__trend--down { color: #ff3b30; background: rgba(255,59,48,0.1); }
.data-card__comparison {
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-sm); margin: var(--space-sm) 0; flex-wrap: wrap;
}
.data-card__compare-item { text-align: center; }
.data-card__compare-label { display: block; font-size: 10px; color: var(--text-muted); margin-bottom: 4px; }
.data-card__compare-value { font-family: var(--font-mono); font-weight: 700; font-size: var(--text-sub); }
.data-card__compare-arrow { color: var(--text-muted); font-size: 1.2em; }

/* ─── Info Box ─── */
.info-box {
  display: flex; gap: var(--space-md); padding: var(--space-md);
  background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px; border-left: 3px solid rgba(0,212,255,0.4);
}
.info-box__icon {
  flex-shrink: 0; width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: rgba(0,212,255,0.1);
  color: var(--progress); font-weight: 700; font-size: 14px;
}
.info-box__content { flex: 1; }
.info-box__content strong { display: block; margin-bottom: 4px; color: var(--text-primary); font-size: var(--text-body); }
.info-box__content p { font-size: var(--text-label); color: var(--text-secondary); line-height: 1.5; }

/* ─── Infra Bars ─── */
.infra-bars { display: flex; flex-direction: column; gap: var(--space-md); margin: var(--space-md) 0; }
.infra-bar { display: grid; grid-template-columns: 110px 1fr 50px; align-items: center; gap: var(--space-sm); }
.infra-bar__label { font-size: var(--text-label); color: var(--text-secondary); }
.infra-bar__track { height: 8px; background: rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; }
.infra-bar__fill { height: 100%; border-radius: 4px; transition: width 2s var(--ease-out-expo); }
.infra-bar__value { font-family: var(--font-mono); font-weight: 700; font-size: var(--text-label); text-align: right; }

/* ─── Exchange Rates ─── */
.exchange-rates { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xs); }
.exchange-rate {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; background: rgba(255,255,255,0.02); border-radius: 8px;
  font-size: var(--text-label);
}
.exchange-rate__currency { font-weight: 600; color: var(--text-secondary); }
.exchange-rate__value { font-family: var(--font-mono); font-weight: 700; color: var(--text-primary); }

/* ─── Regional GDP ─── */
.regional-gdp { display: flex; flex-direction: column; gap: var(--space-xs); }
.regional-gdp__item {
  display: grid;
  grid-template-columns: minmax(120px, 1.2fr) minmax(120px, 2fr) minmax(48px, auto);
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 0;
}
.regional-gdp__name {
  font-size: var(--text-label);
  color: var(--text-secondary);
  white-space: normal;
  line-height: 1.3;
}
.regional-gdp__bar { height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.regional-gdp__fill { height: 100%; border-radius: 3px; background: var(--progress); transition: width 1.5s var(--ease-out-expo); }
.regional-gdp__value { font-family: var(--font-mono); font-weight: 700; font-size: var(--text-label); min-width: 40px; text-align: right; }

@media (max-width: 520px) {
  .regional-gdp__item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .regional-gdp__value {
    text-align: left;
  }
}

/* ─── GitHub ─── */
.github-pulse { display: flex; gap: var(--space-xl); justify-content: center; margin: var(--space-md) 0; flex-wrap: wrap; }
.github-pulse__stat { text-align: center; }
.github-pulse__counter { font-family: var(--font-mono); font-size: clamp(1.5rem,4vw,2.5rem); font-weight: 800; color: var(--progress); }
.github-pulse__label { font-size: var(--text-label); color: var(--text-secondary); margin-top: 4px; }
.github-repos { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-top: var(--space-sm); justify-content: center; }
.github-repo-tag {
  font-size: 10px; padding: 4px 10px;
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.15);
  border-radius: 20px; color: var(--progress); font-family: var(--font-mono);
}

/* ─── News List ─── */
.news-list {
  display: flex; flex-direction: column; gap: var(--space-xs);
  max-height: 300px; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.news-item {
  display: flex; gap: var(--space-sm); padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: var(--text-label); line-height: 1.4;
}
.news-item__source {
  flex-shrink: 0; font-size: 9px; font-weight: 700; color: var(--text-muted);
  padding: 2px 6px; background: rgba(255,255,255,0.04); border-radius: 3px;
  align-self: flex-start; font-family: var(--font-mono);
}
.news-item__title { color: var(--text-secondary); }
.news-item a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
.news-item a:hover { color: var(--text-primary); }

/* ─── AQI + Weather ─── */
.air-quality-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-xs); }
.aqi-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 10px; font-size: var(--text-label); transition: transform 0.2s;
}
.aqi-card:hover { transform: translateY(-1px); }
.aqi-card__city { color: var(--text-secondary); font-weight: 500; }
.aqi-card__value { font-family: var(--font-mono); font-weight: 700; padding: 2px 8px; border-radius: 6px; font-size: 10px; }

.weather-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: var(--space-xs); }
.weather-card {
  padding: 12px; background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 10px; text-align: center; transition: transform 0.2s;
}
.weather-card:hover { transform: translateY(-1px); }
.weather-card__city { font-size: 10px; color: var(--text-muted); font-weight: 600; margin-bottom: 4px; }
.weather-card__temp { font-family: var(--font-mono); font-size: var(--text-sub); font-weight: 800; }
.weather-card__detail { font-size: 10px; color: var(--text-muted); margin-top: 2px; }

/* ─── Pipeline Status ─── */
.pipeline-status { display: flex; justify-content: center; gap: var(--space-lg); flex-wrap: wrap; }
.pipeline-status__item { text-align: center; }
.pipeline-status__value { display: block; font-family: var(--font-mono); font-size: var(--text-sub); font-weight: 800; color: var(--text-primary); }
.pipeline-status__label { display: block; font-size: 10px; color: var(--text-muted); margin-top: 4px; }

/* ─── Gauge ─── */
.gauge { position: relative; display: inline-flex; align-items: center; justify-content: center; }
.gauge__svg { transform: rotate(-90deg); }
.gauge__track { fill: none; stroke: rgba(255,255,255,0.06); }
.gauge__fill { fill: none; stroke-linecap: round; transition: stroke-dashoffset 1.5s var(--ease-out-expo); }
.gauge__value { position: absolute; font-family: var(--font-mono); font-weight: 700; font-variant-numeric: tabular-nums; }
.gauge__label { position: absolute; bottom: -1.5em; font-size: var(--text-label); color: var(--text-secondary); text-align: center; width: 100%; }

/* ─── Live Badge ─── */
.live-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; background: rgba(255,59,48,0.12);
  border: 1px solid rgba(255,59,48,0.25); border-radius: 20px;
  font-size: 10px; font-weight: 600; color: var(--danger);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.live-badge--sm { padding: 2px 7px; font-size: 9px; gap: 4px; }
.live-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--danger); animation: livePulse 2s ease infinite; }

/* ─── Zone Badge ─── */
.zone-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 20px;
  font-size: var(--text-label); font-weight: 600; letter-spacing: 0.04em;
}
.zone-badge--critical { background: rgba(255,59,48,0.15); color: var(--zone-critical); border: 1px solid rgba(255,59,48,0.3); }
.zone-badge--concerning { background: rgba(255,149,0,0.15); color: var(--zone-concerning); border: 1px solid rgba(255,149,0,0.3); }
.zone-badge--mixed { background: rgba(255,204,0,0.15); color: var(--zone-mixed); border: 1px solid rgba(255,204,0,0.3); }
.zone-badge--positive { background: rgba(52,199,89,0.15); color: var(--zone-positive); border: 1px solid rgba(52,199,89,0.3); }
.zone-badge--excellent { background: rgba(0,212,255,0.15); color: var(--zone-excellent); border: 1px solid rgba(0,212,255,0.3); }

/* ─── Data Tier Badge ─── */
.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
  white-space: nowrap;
}
.data-badge--live {
  background: rgba(255,59,48,0.12);
  color: var(--danger);
  border: 1px solid rgba(255,59,48,0.25);
}
.data-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--danger);
  animation: livePulse 2s ease infinite;
}
.data-badge--cache {
  background: rgba(142,142,147,0.12);
  color: var(--text-secondary);
  border: 1px solid rgba(142,142,147,0.25);
}
.data-badge--stale {
  background: rgba(255,149,0,0.12);
  color: var(--warning-dark);
  border: 1px solid rgba(255,149,0,0.25);
}
.data-badge--static {
  background: rgba(142,142,147,0.12);
  color: var(--text-secondary);
  border: 1px solid rgba(142,142,147,0.25);
}

/* Kleine Zeitangabe direkt im Cache-Badge (user-requested):
   "Cache · vor 3h" — sichtbar statt nur im Hover-Tooltip. */
.data-badge__age {
  font-size: 9px;
  font-weight: 400;
  opacity: 0.75;
  text-transform: none;
  letter-spacing: 0.02em;
  margin-left: 2px;
}

/* ─── Scroll Hint ─── */
.scroll-hint {
  position: absolute; bottom: var(--space-lg); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: var(--text-label);
  animation: scrollHintFloat 3s ease-in-out infinite;
}
.scroll-hint__arrow { font-size: 1.5em; animation: scrollHintBounce 2s ease-in-out infinite; }

/* ─── Source Card ─── */
.source-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 12px; padding: var(--space-sm) var(--space-md);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-sm); transition: all var(--duration-normal) var(--ease-out-quart);
}
.source-card:hover { background: var(--glass-bg-hover); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.source-card__name { font-weight: 600; font-size: var(--text-body); }
.source-card__category { font-size: 9px; color: var(--text-muted); padding: 2px 6px; background: rgba(255,255,255,0.04); border-radius: 3px; font-family: var(--font-mono); text-transform: uppercase; }
.source-card__trust { color: var(--warning); letter-spacing: 2px; }
.source-card__date { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

/* ─── Action Card ─── */
.action-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: var(--space-lg); text-align: center;
  transition: all var(--duration-normal) var(--ease-out-quart);
}
.action-card:hover { background: var(--glass-bg-hover); border-color: var(--glass-border-hover); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.action-card--featured { border-color: rgba(0,212,255,0.2); background: linear-gradient(135deg, rgba(0,212,255,0.06), rgba(52,199,89,0.03)); }
.action-card__icon { display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-sm); color: var(--progress); }
.action-card__icon svg { width: 40px; height: 40px; }
.action-card__title { font-size: var(--text-sub); font-weight: 600; margin-bottom: var(--space-xs); }
.action-card__desc { font-size: var(--text-body); color: var(--text-secondary); margin-bottom: var(--space-md); }
.action-card__impact { font-size: 10px; color: var(--text-muted); padding: 6px 12px; background: rgba(255,255,255,0.03); border-radius: 8px; display: inline-block; }
.action-card__examples { display: flex; flex-direction: column; gap: 6px; margin-top: var(--space-sm); }
.action-card__example { font-family: var(--font-mono); font-size: var(--text-label); color: var(--progress); padding: 6px 12px; background: rgba(0,212,255,0.06); border-radius: 8px; }

/* ─── Scenario ─── */
.scenario { position: relative; padding: var(--space-lg); border-radius: 16px; border: 1px solid var(--glass-border); overflow: hidden; }
.scenario--bau { background: linear-gradient(135deg, rgba(255,149,0,0.08), rgba(255,149,0,0.02)); border-color: rgba(255,149,0,0.2); }
.scenario--worst { background: linear-gradient(135deg, rgba(255,59,48,0.08), rgba(255,59,48,0.02)); border-color: rgba(255,59,48,0.2); }
.scenario--best { background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(0,212,255,0.02)); border-color: rgba(0,212,255,0.2); }
.scenario__badge { font-size: 10px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: var(--space-xs); }
.scenario__title { font-size: var(--text-sub); font-weight: 700; margin-bottom: 4px; }
.scenario__subtitle { font-size: var(--text-label); color: var(--text-muted); margin-bottom: var(--space-md); }
.scenario__scores { display: flex; align-items: center; justify-content: center; gap: var(--space-sm); margin-bottom: var(--space-md); }
.scenario__score-item { text-align: center; }
.scenario__score-label { display: block; font-size: 10px; color: var(--text-muted); margin-bottom: 4px; }
.scenario__score { font-family: var(--font-mono); font-size: var(--text-sub); font-weight: 800; }
.scenario__score--main { font-size: clamp(2rem,4vw,3rem); }
.scenario__score-arrow { color: var(--text-muted); font-size: 1.2em; }
.scenario__list { list-style: none; display: flex; flex-direction: column; gap: var(--space-xs); }
.scenario__list li { font-size: var(--text-body); color: var(--text-secondary); padding-left: 1.5em; position: relative; }
.scenario__list li::before { content: '→'; position: absolute; left: 0; }

/* ─── Map ─── */
.map-container { position: relative; width: 100%; max-width: 960px; margin: 0 auto; aspect-ratio: 2 / 1; min-height: 300px; }
.map-container svg { width: 100%; height: 100%; }
.map-svg-wrapper svg path { cursor: pointer; }
.map-svg-wrapper svg path:hover { opacity: 1 !important; filter: brightness(1.3); }
.map-overlay { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.map-point { position: absolute; width: 8px; height: 8px; border-radius: 50%; transform: translate(-50%,-50%); pointer-events: auto; cursor: pointer; z-index: 3; }
.map-point--pulse { animation: mapPulse 2s ease-in-out infinite; }
.map-point-label { pointer-events: none; z-index: 4; }
.map-legend { z-index: 5; pointer-events: none; }

/* ─── Conflict Country Glow ─── */
.map-country--war,
.map-country--conflict,
.map-country--unrest { cursor: pointer; }
.map-country--war {
  animation: countryGlowWar 2.5s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(255, 32, 32, 0.8));
}
.map-country--conflict {
  animation: countryGlowConflict 3s ease-in-out infinite;
  filter: drop-shadow(0 0 4px rgba(224, 85, 0, 0.6));
}
.map-country--unrest {
  animation: countryGlowUnrest 3.5s ease-in-out infinite;
  filter: drop-shadow(0 0 3px rgba(204, 102, 0, 0.4));
}
@keyframes countryGlowWar {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(255, 32, 32, 0.6)); opacity: 0.9; }
  50% { filter: drop-shadow(0 0 12px rgba(255, 32, 32, 1)); opacity: 1; }
}
@keyframes countryGlowConflict {
  0%, 100% { filter: drop-shadow(0 0 3px rgba(224, 85, 0, 0.4)); opacity: 0.85; }
  50% { filter: drop-shadow(0 0 8px rgba(224, 85, 0, 0.8)); opacity: 0.95; }
}
@keyframes countryGlowUnrest {
  0%, 100% { filter: drop-shadow(0 0 2px rgba(204, 102, 0, 0.3)); opacity: 0.75; }
  50% { filter: drop-shadow(0 0 5px rgba(204, 102, 0, 0.6)); opacity: 0.85; }
}

/* ─── Map Tooltip (click-to-show) ─── */
.map-tooltip {
  position: absolute;
  z-index: 20;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.map-tooltip--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Chart + Widget + Misc ─── */
.chart-container { position: relative; width: 100%; padding: var(--space-sm) 0; }
.chart-container svg { width: 100%; overflow: visible; }
.widget {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: var(--space-md); position: relative;
  overflow: hidden; transition: all var(--duration-normal) var(--ease-out-quart);
}
.widget:hover { background: var(--glass-bg-hover); border-color: var(--glass-border-hover); }
.widget--wide { grid-column: span 2; }
@media (max-width: 640px) { .widget--wide { grid-column: span 1; } }
.widget__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-sm); }
.widget__title { font-size: var(--text-label); font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.06em; }
.widget__body { flex: 1; }
.widget__glow { position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at center, var(--accent), transparent 70%); opacity: 0.03; pointer-events: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 12px; font-size: var(--text-body); font-weight: 600;
  transition: all var(--duration-normal) var(--ease-out-quart); position: relative; overflow: hidden;
}
.btn--primary { background: linear-gradient(135deg, var(--progress), var(--success)); color: #000; }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,212,255,0.3); }
.btn--ghost { background: transparent; border: 1px solid var(--glass-border); color: var(--text-primary); }
.btn--ghost:hover { background: var(--glass-bg-hover); border-color: var(--glass-border-hover); }

.timestamp { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); }

/* ─── Prolog Meta ─── */
.prolog__meta {
  display: flex; align-items: center; gap: var(--space-md);
  margin-top: var(--space-xl); padding: var(--space-sm) var(--space-lg);
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
  border-radius: 50px;
}
.prolog__meta-item { text-align: center; }
.prolog__meta-value { display: block; font-family: var(--font-mono); font-weight: 700; font-size: var(--text-body); color: var(--text-primary); }
.prolog__meta-label { display: block; font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.prolog__meta-divider { width: 1px; height: 30px; background: rgba(255,255,255,0.1); }

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .prolog__meta { padding: var(--space-xs) var(--space-sm); gap: var(--space-sm); flex-wrap: wrap; justify-content: center; }
  .prolog__meta-divider { display: none; }
  .infra-bar { grid-template-columns: 80px 1fr 40px; }
  .exchange-rates { grid-template-columns: 1fr; }
  .btn { padding: 14px 24px; min-height: 48px; }
}

/* ─── Language Toggle ─── */
.lang-toggle-wrapper {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 300;
}
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(10, 10, 15, 0.65);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  font-family: var(--font-mono, 'SF Mono', monospace);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: all 0.3s ease;
}
.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
  transform: scale(1.05);
}
.lang-toggle:active {
  transform: scale(0.97);
}
.lang-toggle__icon {
  display: flex;
  align-items: center;
  opacity: 0.7;
}
.lang-toggle__label {
  text-transform: uppercase;
}
@media (max-width: 640px) {
  .lang-toggle-wrapper { bottom: 12px; right: 12px; }
  .lang-toggle { padding: 6px 10px; font-size: 11px; }
}

/* ─── Timeline ─── */
.timeline {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 300;
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.timeline__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: rgba(10, 10, 15, 0.65);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.timeline__btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
}
.timeline__btn.is-active {
  border-color: var(--accent, #00d4ff);
  color: var(--accent, #00d4ff);
}
.timeline__btn.is-historical {
  border-color: rgba(255, 170, 0, 0.5);
  color: rgba(255, 170, 0, 0.9);
}
.timeline__panel {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  width: 220px;
  max-width: calc(100vw - 80px);
}
.timeline__panel.is-open { display: flex; }
.timeline__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.timeline__date {
  font-family: var(--font-mono, 'SF Mono', monospace);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent, #00d4ff);
  letter-spacing: 0.03em;
}
.timeline__date.is-historical { color: rgba(255, 170, 0, 0.9); }
.timeline__index {
  font-family: var(--font-mono, 'SF Mono', monospace);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
}
.timeline__range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  cursor: pointer;
  margin: 4px 0;
}
.timeline__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent, #00d4ff);
  border: 2px solid rgba(10, 10, 15, 0.9);
  cursor: grab;
  transition: transform 0.15s ease;
}
.timeline__range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent, #00d4ff);
  border: 2px solid rgba(10, 10, 15, 0.9);
  cursor: grab;
}
.timeline__range:active::-webkit-slider-thumb { transform: scale(1.3); cursor: grabbing; }
.timeline__range:active::-moz-range-thumb { transform: scale(1.3); cursor: grabbing; }
.timeline__labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono, 'SF Mono', monospace);
  font-size: 9px;
  color: rgba(255, 255, 255, 0.3);
}
@media (max-width: 640px) {
  .timeline { bottom: 12px; left: 12px; }
  .timeline__panel { width: 190px; padding: 8px 10px; }
  .timeline__range::-webkit-slider-thumb { width: 18px; height: 18px; }
  .timeline__range::-moz-range-thumb { width: 18px; height: 18px; }
}

/* ─── Scroll-to-Top Button ─── */
.scroll-top {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(10, 10, 15, 0.6);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.scroll-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.scroll-top.is-fading {
  opacity: 0;
  pointer-events: none;
}
.scroll-top:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}
.scroll-top__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.scroll-top__track {
  stroke: rgba(255, 255, 255, 0.08);
}
.scroll-top__progress {
  stroke: var(--accent, #00d4ff);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.1s linear;
}
.scroll-top__arrow {
  position: absolute;
  z-index: 1;
}
@media (max-width: 640px) {
  .scroll-top { bottom: 12px; width: 44px; height: 44px; }
  .scroll-top__arrow { width: 14px; height: 14px; }
  .air-quality-grid { grid-template-columns: 1fr; }
  .weather-grid { grid-template-columns: repeat(2, 1fr); }
  .aqi-card__value { font-size: 12px; }
  .top-bar__brand { font-size: 11px; }
  .top-bar__version { font-size: 10px; }
}