/* ==========================================================================
   Reloj de población mundial y demografía en tiempo real - Estilos oficiales
   ========================================================================== */

:root {
  /* Paleta cromática tema oscuro (predeterminado) */
  --bg-app: #090d16;
  --bg-card: #0f172a;
  --bg-card-elevated: #1e293b;
  --bg-card-subtle: rgba(30, 41, 59, 0.6);
  --border-color: #334155;
  --border-focus: #38bdf8;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-blue: #3b82f6;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-amber: #f59e0b;
  --accent-purple: #a855f7;

  --glow-cyan: rgba(56, 189, 248, 0.25);
  --glow-emerald: rgba(16, 185, 129, 0.22);
  --glow-rose: rgba(244, 63, 94, 0.22);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.15);
}

[data-theme="light"] {
  --bg-app: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-elevated: #f8fafc;
  --bg-card-subtle: #f1f5f9;
  --border-color: #cbd5e1;
  --border-focus: #0284c7;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --accent-cyan: #0284c7;
  --accent-blue: #2563eb;
  --accent-emerald: #059669;
  --accent-rose: #e11d48;
  --accent-amber: #d97706;
  --accent-purple: #9333ea;

  --glow-cyan: rgba(2, 132, 199, 0.15);
  --glow-emerald: rgba(5, 150, 105, 0.15);
  --glow-rose: rgba(225, 29, 72, 0.15);

  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.1);
}

/* Reset y estructura canónica fijate */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.015em;
}

/* Contenedor del layout principal */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 1.5rem;
  width: 100%;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  max-width: 100%;
}

/* Tarjeta principal */
.card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}

/* ==========================================================================
   Hero: Gran Reloj Demográfico Planetario
   ========================================================================== */
.world-hero-section {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.85));
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .world-hero-section {
  background: linear-gradient(135deg, #ffffff, #f8fafc);
}

/* Insignia superior con indicador de latido */
.hero-top-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}

.pulse-indicator {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 1.8s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1.15);
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

/* Caja del odómetro de población mundial */
.ticker-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.75rem;
}

.ticker-odometer {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5.5vw, 4.25rem);
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-shadow: 0 0 25px var(--glow-cyan);
  background: linear-gradient(180deg, var(--text-main) 60%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .ticker-odometer {
  background: linear-gradient(180deg, #0f172a 60%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
}

.ticker-rate-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
}

.trend-icon {
  font-size: 0.75rem;
}

/* Rejilla de métricas acumuladas (Hoy vs Año) */
.hero-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  width: 100%;
  max-width: 960px;
  margin-bottom: 1.75rem;
}

.hero-kpi-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.kpi-column-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: none;
}

.hero-kpi-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.hero-kpi-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
}

.kpi-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.kpi-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.kpi-births .kpi-dot { background-color: var(--accent-emerald); }
.kpi-deaths .kpi-dot { background-color: var(--accent-rose); }
.kpi-net .kpi-dot { background-color: var(--accent-cyan); }

.kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-num {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.kpi-births .kpi-num { color: var(--accent-emerald); }
.kpi-deaths .kpi-num { color: var(--accent-rose); }
.kpi-net .kpi-num { color: var(--accent-cyan); }

.kpi-sub {
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* Barra apilada continental */
.continents-bar-wrap {
  width: 100%;
  max-width: 960px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.continents-bar-title {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.small-hint {
  font-weight: 400;
  color: var(--text-dim);
}

.continents-stacked-bar {
  display: flex;
  height: 14px;
  width: 100%;
  border-radius: 9999px;
  overflow: hidden;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
}

.continent-slice {
  height: 100%;
  transition: width 0.4s ease;
  position: relative;
}

.continents-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 0.35rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.legend-chip {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

/* ==========================================================================
   Navegación por pestañas (Tabs)
   ========================================================================== */
.tool-tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  min-height: 40px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.tab-btn:hover {
  background: var(--bg-card-elevated);
  color: var(--text-main);
  border-color: var(--border-color);
}

.tab-btn.active {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.3);
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  animation: fadeIn 0.2s ease-in-out;
}

.tab-pane.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   1. Explorador por país
   ========================================================================== */
.country-explorer-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.search-select-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 480px;
  width: 100%;
}

.control-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 42px;
  min-height: 40px;
  padding: 0 0.85rem;
  background-color: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  cursor: pointer;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.form-control-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Ficha en vivo del país */
.country-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.country-card-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.country-flag-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.country-big-flag {
  font-size: 2.75rem;
  line-height: 1;
}

.country-name-heading {
  font-size: 1.5rem;
  font-weight: 700;
}

.country-meta-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.country-rank-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  padding: 0.5rem 0.85rem;
  border-radius: 0.5rem;
}

.rank-tag {
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
}

.rank-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

/* Ticker vivo del país */
.country-live-ticker-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.live-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.country-live-pop {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.country-live-shares {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.country-share-pill, .country-rate-pill {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
}

.country-share-pill {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.country-rate-pill {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.country-rate-pill.negative {
  background: rgba(244, 63, 94, 0.12);
  color: var(--accent-rose);
  border-color: rgba(244, 63, 94, 0.25);
}

/* Métricas del país */
.country-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.c-metric-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.c-metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.c-metric-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.c-metric-sub {
  font-size: 0.6875rem;
  color: var(--text-dim);
}

/* Estructura de edades */
.country-age-structure {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.age-structure-title {
  font-size: 0.875rem;
  font-weight: 600;
}

.age-bar-track {
  display: flex;
  height: 12px;
  border-radius: 9999px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.age-bar-seg {
  height: 100%;
}

.age-youth { background-color: #38bdf8; }
.age-adult { background-color: #3b82f6; }
.age-senior { background-color: #f59e0b; }

.age-bar-labels {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.age-lbl-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.lbl-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.age-lbl-item.youth .lbl-dot { background-color: #38bdf8; }
.age-lbl-item.adult .lbl-dot { background-color: #3b82f6; }
.age-lbl-item.senior .lbl-dot { background-color: #f59e0b; }

/* ==========================================================================
   2. Ranking mundial interactivo
   ========================================================================== */
.ranking-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  justify-content: space-between;
  align-items: center;
}

.ranking-search-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0 0.75rem;
  min-height: 40px;
  flex: 1 1 240px;
  max-width: 380px;
}

.search-input {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  width: 100%;
}

.search-input:focus {
  outline: none;
}

.continent-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.filter-pill {
  padding: 0.35rem 0.75rem;
  min-height: 36px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-pill:hover {
  border-color: var(--accent-cyan);
  color: var(--text-main);
}

.filter-pill.active {
  background: var(--accent-cyan);
  color: #0f172a;
  border-color: var(--accent-cyan);
  font-weight: 700;
}

.ranking-table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  background: var(--bg-card-elevated);
}

.ranking-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.ranking-table th {
  background: var(--bg-card);
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.ranking-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  white-space: nowrap;
}

.ranking-table tbody tr:hover {
  background-color: rgba(56, 189, 248, 0.05);
}

.ranking-table .td-rank {
  font-weight: 700;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.ranking-table .td-country {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  cursor: pointer;
}

.ranking-table .td-country:hover {
  color: var(--accent-cyan);
}

.ranking-table .td-pop {
  font-weight: 700;
  color: var(--text-main);
}

.ranking-table-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--text-dim);
  padding: 0 0.25rem;
}

.badge-live-dot {
  color: var(--accent-emerald);
  font-weight: 600;
  font-size: 0.75rem;
}

/* ==========================================================================
   3. Comparador cara a cara
   ========================================================================== */
.compare-selectors-grid {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.compare-side-select {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.compare-vs-badge {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--accent-cyan);
  padding: 0.5rem 0.75rem;
  background: rgba(56, 189, 248, 0.1);
  border-radius: 50%;
  align-self: flex-end;
  margin-bottom: 2px;
}

.compare-cards-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.compare-card {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
}

.compare-metrics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.compare-metrics-table th, .compare-metrics-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.compare-metrics-table th {
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
}

/* ==========================================================================
   4. Calculadora "¿Qué número de habitante eras al nacer?"
   ========================================================================== */
.birthday-calculator-box {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.7));
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

[data-theme="light"] .birthday-calculator-box {
  background: linear-gradient(135deg, #ffffff, #f8fafc);
}

.badge-pill-accent {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.3);
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  margin-bottom: 0.5rem;
}

.birthday-title {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.birthday-desc {
  color: var(--text-muted);
  font-size: 0.9375rem;
  max-width: 780px;
}

.birthday-form {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

.birthday-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1 1 240px;
  max-width: 320px;
}

.form-control-date {
  width: 100%;
  height: 42px;
  min-height: 40px;
  padding: 0 0.85rem;
  background-color: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}

.form-control-date:focus {
  outline: none;
  border-color: var(--border-focus);
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.25rem;
  height: 42px;
  min-height: 40px;
  background: var(--accent-cyan);
  color: #0f172a;
  border: none;
  border-radius: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary-action:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* Tarjeta de resultado */
.birthday-result-card {
  background: var(--bg-card);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 0.75rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.08);
  animation: fadeIn 0.3s ease;
}

.result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.result-celebration-icon {
  font-size: 2.5rem;
}

.result-tagline {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.result-main-number {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--accent-cyan);
}

.result-insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.insight-box {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.insight-title {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.insight-val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.insight-sub {
  font-size: 0.6875rem;
  color: var(--text-dim);
}

.result-share-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-share-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  min-height: 40px;
  background-color: #25d366;
  color: #ffffff;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.btn-share-whatsapp:hover {
  filter: brightness(1.08);
}

.btn-copy-card {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  min-height: 40px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-copy-card:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ==========================================================================
   5. Línea de tiempo y proyecciones
   ========================================================================== */
.timeline-slider-box {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}

.timeline-title {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

.timeline-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 680px;
}

.selected-year-badge {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.4rem 0.85rem;
  border-radius: 0.5rem;
}

.year-label {
  font-size: 0.6875rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.year-display {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.slider-control-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timeline-range {
  width: 100%;
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  accent-color: var(--accent-cyan);
}

.timeline-markers {
  display: flex;
  justify-content: space-between;
  font-size: 0.6875rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 0.25rem;
}

.timeline-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.t-stat-hero {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.t-stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.t-stat-value {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 800;
  color: var(--text-main);
}

.t-stat-comment {
  font-size: 0.8125rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.milestones-heading {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.milestones-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--text-main);
}

.milestones-bullet-list strong {
  color: var(--accent-cyan);
}

/* ==========================================================================
   Modales canónicos accesibles
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.875rem;
  max-width: 540px;
  width: 100%;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  animation: modalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 700;
}

.btn-modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
}

.btn-modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  line-height: 1.6;
}

.modal-body ul {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card-elevated);
}

.btn-secondary {
  padding: 0.5rem 1rem;
  min-height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--bg-card-subtle);
}

/* Toast flotante */
.toast-notification {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg-card-elevated);
  border: 1px solid var(--accent-cyan);
  color: var(--text-main);
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-card);
  z-index: 1100;
  display: none;
  animation: toastSlide 0.25s ease;
}

.toast-notification.show {
  display: block;
}

@keyframes toastSlide {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   Adaptación responsiva para dispositivos móviles
   ========================================================================== */
@media (max-width: 900px) {
  .hero-kpi-grid {
    grid-template-columns: 1fr;
  }

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

  .compare-cards-container {
    grid-template-columns: 1fr;
  }

  .compare-selectors-grid {
    flex-direction: column;
    align-items: stretch;
  }

  .compare-vs-badge {
    align-self: center;
    margin: 0;
  }

  .result-insights-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .card-main {
    padding: 1rem;
    gap: 1.25rem;
  }

  .world-hero-section {
    padding: 1.25rem 0.85rem;
  }

  .ticker-odometer {
    font-size: 2.15rem;
  }

  .country-metrics-grid {
    grid-template-columns: 1fr;
  }

  .birthday-form {
    flex-direction: column;
    align-items: stretch;
  }

  .birthday-input-group {
    max-width: 100%;
  }

  .btn-primary-action {
    width: 100%;
  }

  .ranking-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .ranking-search-box {
    max-width: 100%;
  }

  .tool-tab-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .tab-btn {
    width: 100%;
    justify-content: center;
    font-size: 0.8125rem;
    padding: 0.5rem 0.4rem;
  }
}

/* ==========================================================================
   Mapa coroplético y mapa de calor de densidad demográfica mundial
   ========================================================================== */

.map-controls-panel {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.map-control-group {
  flex: 1 1 280px;
  min-width: 0;
}

.map-actions-group {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.btn-map-action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  height: 42px;
  padding: 0 1rem;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-map-action:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
}

.map-viewport-wrapper {
  position: relative;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #080d1a;
  box-shadow: var(--shadow-card);
}

[data-theme="light"] .map-viewport-wrapper {
  background: #e2e8f0;
}

.density-map-viewport {
  width: 100%;
  height: 520px;
  background: transparent !important;
  z-index: 1;
}

/* Personalización de controles y capas de Leaflet */
.leaflet-container {
  background: transparent !important;
  font-family: var(--font-sans) !important;
}

.leaflet-bar {
  border: 1px solid var(--border-color) !important;
  box-shadow: var(--shadow-card) !important;
  border-radius: 8px !important;
  overflow: hidden;
}

.leaflet-bar a {
  background-color: var(--bg-card-elevated) !important;
  color: var(--text-main) !important;
  border-bottom: 1px solid var(--border-color) !important;
  transition: background 0.15s ease, color 0.15s ease;
}

.leaflet-bar a:hover {
  background-color: var(--border-color) !important;
  color: var(--accent-cyan) !important;
}

.leaflet-bar a:last-child {
  border-bottom: none !important;
}

/* Tooltip flotante único interactivo (sin fugas ni duplicados) */
.map-hover-tooltip {
  position: absolute;
  z-index: 600;
  pointer-events: none;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-main);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  box-shadow: 0 12px 30px -4px rgba(0, 0, 0, 0.6);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  line-height: 1.35;
  opacity: 0;
  transform: translate(-50%, -100%);
  margin-top: -12px;
  transition: opacity 0.12s ease;
  will-change: left, top, opacity;
  white-space: nowrap;
}

[data-theme="light"] .map-hover-tooltip {
  background: rgba(255, 255, 255, 0.96);
  color: #0f172a;
  box-shadow: 0 12px 25px -4px rgba(0, 0, 0, 0.15);
}

.map-tt-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
  font-weight: 600;
  font-size: 0.875rem;
}

.map-tt-flag {
  font-size: 1.15rem;
  line-height: 1;
}

.map-tt-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.map-tt-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--text-muted);
}

.map-tt-val {
  font-weight: 600;
  color: var(--text-main);
}

/* Leyenda cromática graduada */
.map-legend-container {
  position: absolute;
  bottom: 14px;
  left: 14px;
  z-index: 400;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  max-width: calc(100% - 28px);
  box-shadow: var(--shadow-card);
}

[data-theme="light"] .map-legend-container {
  background: rgba(255, 255, 255, 0.92);
}

.map-legend-title {
  font-size: 0.71875rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.map-legend-items {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.map-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.map-legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Ficha del país seleccionado / inspeccionado */
.map-inspector-card {
  margin-top: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
}

.inspector-empty {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-dim);
  font-size: 0.875rem;
  padding: 0.4rem 0;
}

.inspector-hint-icon {
  font-size: 1.35rem;
}

.inspector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.inspector-flag-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.inspector-flag {
  font-size: 2.2rem;
  line-height: 1;
}

.inspector-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.inspector-sub {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.btn-sm-explore {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  height: 38px;
  padding: 0 0.9rem;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-sm-explore:hover {
  background: var(--accent-cyan);
  color: #090d16;
}

.inspector-kpis-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.insp-kpi {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.insp-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 500;
}

.insp-val {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* Curiosidades y contrastes de densidad */
.density-fun-facts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.fun-fact-card {
  display: flex;
  gap: 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  transition: transform 0.2s ease;
}

.fun-fact-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
}

.fun-fact-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1;
}

.fun-fact-body h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text-main);
}

.fun-fact-body p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.45;
}

@media (max-width: 900px) {
  .density-fun-facts-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .density-map-viewport {
    height: 420px;
  }

  .map-controls-panel {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-map-action {
    width: 100%;
    justify-content: center;
  }

  .map-legend-container {
    position: static;
    margin: 0.5rem;
    max-width: none;
    border-radius: 6px;
  }

  .inspector-kpis-grid {
    grid-template-columns: 1fr;
  }
}