/* ============================================================
   GeoQuizz - Estilos Globales & Sistema de Diseño (Tema Claro)
   ============================================================ */

/* ---------- Variables y Reset ---------- */
:root {
    --bg-main: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-hover: #ffffff;
    --border-color: #e2e8f0;
    --border-highlight: rgba(79, 70, 229, 0.35);
    
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.2);
    --secondary: #0284c7;
    --secondary-glow: rgba(2, 132, 199, 0.2);
    --accent: #10b981;
    
    --success: #059669;
    --success-bg: #d1fae5;
    --danger: #e11d48;
    --danger-bg: #ffe4e6;
    --warning: #d97706;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-sub: #334155;

    --shadow-main: 0 20px 40px -15px rgba(15, 23, 42, 0.08), 0 0 1px rgba(15, 23, 42, 0.1);
    --shadow-card: 0 8px 20px -6px rgba(15, 23, 42, 0.06);
    
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 760px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, #e0e7ff 0px, transparent 50%),
        radial-gradient(at 100% 0%, #e0f2fe 0px, transparent 50%),
        radial-gradient(at 50% 100%, #fef3c7 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 15px;
}

/* ---------- Contenedor Principal (SPA Screen) ---------- */
.container {
    max-width: var(--max-width);
    width: 100%;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 36px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: var(--shadow-main);
    margin: 10px auto;
    position: relative;
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(24px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hidden {
    display: none !important;
}

/* ---------- Encabezado y Logo ---------- */
.menu-header {
    text-align: center;
    margin-bottom: 32px;
}

.app-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo-globe {
    font-size: 2.8em;
    filter: drop-shadow(0 4px 10px rgba(2, 132, 199, 0.3));
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(5deg); }
}

.menu-header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.6em;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #4f46e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.menu-subtitle {
    color: var(--text-muted);
    font-size: 1.05em;
    font-weight: 500;
}

/* ---------- Tarjetas de Selección de Juego ---------- */
.game-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.game-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: 12px;
    box-shadow: var(--shadow-card);
}

.game-card:hover {
    background: var(--bg-card-hover);
    border-color: #818cf8;
    transform: translateY(-4px);
    box-shadow: 0 12px 28px -8px rgba(79, 70, 229, 0.2);
}

.game-card:active {
    transform: translateY(-1px);
}

.card-badge {
    font-size: 0.68em;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
}

.badge-silueta { background: #e0f2fe; color: #0284c7; border: 1px solid #bae6fd; }
.badge-bandera { background: #ffedd5; color: #c2410c; border: 1px solid #fed7aa; }
.badge-capital { background: #d1fae5; color: #059669; border: 1px solid #a7f3d0; }
.badge-country-capital { background: #ede9fe; color: #7c3aed; border: 1px solid #ddd6fe; }
.badge-fact { background: #ffe4e6; color: #e11d48; border: 1px solid #fecdd3; }
.badge-explorer { background: #fef3c7; color: #d97706; border: 1px solid #fde68a; }

.card-icon-wrapper {
    font-size: 2.2em;
    line-height: 1;
    padding: 10px;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: 1px solid #f1f5f9;
}

.game-card:hover .card-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    background: #eef2ff;
}

.card-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15em;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

.card-desc {
    font-size: 0.85em;
    color: var(--text-muted);
    line-height: 1.45;
}

.game-card.featured {
    border-color: rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, #eef2ff 0%, #ffffff 100%);
}

.game-card.card-explorer {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.game-card.card-explorer .card-content {
    flex: 1;
}

/* ---------- Selector de Dificultad ---------- */
.modal-header-nav {
    text-align: center;
    margin-bottom: 24px;
}

.modal-header-nav h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 2em;
    font-weight: 800;
    color: var(--text-main);
}

.difficulty-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 20px 0;
}

.diff-card {
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.diff-card:hover {
    transform: translateY(-4px);
}

.easy-card:hover {
    border-color: var(--success);
    box-shadow: 0 10px 25px -5px rgba(5, 150, 105, 0.2);
    background: #f0fdf4;
}

.medium-card:hover {
    border-color: var(--warning);
    box-shadow: 0 10px 25px -5px rgba(217, 119, 6, 0.2);
    background: #fffbe6;
}

.hard-card:hover {
    border-color: var(--danger);
    box-shadow: 0 10px 25px -5px rgba(225, 29, 72, 0.2);
    background: #fff1f2;
}

.diff-icon {
    font-size: 2.5em;
    margin-bottom: 8px;
}

.diff-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.3em;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-main);
}

.diff-desc {
    font-size: 0.85em;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ---------- Botones Globales ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.95em;
    font-weight: 700;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    transform: translateY(-2px);
}

.btn-back {
    background: #ffffff;
    color: var(--text-sub);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    font-size: 0.9em;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}

.btn-back:hover {
    background: #f8fafc;
    color: var(--text-main);
    border-color: #cbd5e1;
}

.btn-full {
    width: 100%;
}

.mb-10 {
    margin-bottom: 10px;
}

.mt-20 {
    margin-top: 20px;
}

/* ---------- Encabezado y HUD del Juego ---------- */
.game-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.game-mode-heading {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6em;
    font-weight: 700;
    color: var(--text-main);
    flex: 1;
    text-align: left;
}

.hud {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    background: #f8fafc;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.hud-item {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.hud-icon {
    font-size: 1.4em;
}

.hud-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.hud-label {
    font-size: 0.7em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 700;
}

.hud-val {
    font-weight: 800;
    font-size: 1.05em;
    color: var(--text-main);
}

.score-val {
    color: var(--warning);
}

.badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75em;
    font-weight: 800;
    display: inline-block;
}

.badge.easy {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid #a7f3d0;
}

.badge.medium {
    background: #fef3c7;
    color: #d97706;
    border: 1px solid #fde68a;
}

.badge.hard {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid #fecdd3;
}

.badge.all {
    background: #e0e7ff;
    color: #4f46e5;
    border: 1px solid #c7d2fe;
}

/* ---------- Barra del Temporizador ---------- */
.timer-bar-container {
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 4px;
    margin-bottom: 24px;
    overflow: hidden;
}

.timer-bar {
    height: 100%;
    background: linear-gradient(90deg, #10b981 0%, #f59e0b 60%, #ef4444 100%);
    border-radius: 4px;
    width: 100%;
}

/* ---------- Contenedor de Silueta (Tema Claro) ---------- */
.silhouette-container {
    height: 380px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 24px;
    background: radial-gradient(circle at center, #ffffff 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 10px rgba(15, 23, 42, 0.04);
}

.silhouette-img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    filter: brightness(0) drop-shadow(0 4px 15px rgba(15, 23, 42, 0.15));
    transition: filter 0.5s ease, transform 0.5s ease;
}

.silhouette-img.revealed {
    filter: drop-shadow(0 8px 25px rgba(79, 70, 229, 0.35));
    transform: scale(1.05);
}

/* ---------- Contenedor de Banderas ---------- */
.flag-display-container {
    height: 340px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 24px;
    background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.flag-img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    border-radius: var(--radius-xs);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.15);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.flag-img:hover {
    transform: scale(1.03);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.22);
}

/* ---------- Pregunta Texto ---------- */
.question-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.35em;
    font-weight: 600;
    color: var(--text-main);
    margin: 20px 0 24px 0;
    padding: 24px;
    background: #f8fafc;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    line-height: 1.5;
    text-align: left;
}

.question-icon {
    font-size: 1.8em;
    display: block;
    margin-bottom: 8px;
}

/* ---------- Grid de Opciones ---------- */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.options-grid button {
    padding: 16px 20px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1em;
    font-weight: 700;
    border: 1px solid var(--border-color);
    background: #ffffff;
    color: var(--text-main);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    box-shadow: var(--shadow-card);
}

.options-grid button:hover:not(:disabled) {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
}

.options-grid button:disabled {
    cursor: not-allowed;
    opacity: 0.75;
}

.options-grid button.correct {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    border-color: #10b981 !important;
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4) !important;
}

.options-grid button.incorrect {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
    border-color: #ef4444 !important;
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4) !important;
}

/* ---------- Feedback Flotante Toast ---------- */
.feedback-overlay {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 28px;
    border-radius: 30px;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.1em;
    z-index: 2000;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.2);
    pointer-events: none;
}

.feedback-overlay.correct {
    background: var(--success);
    color: #ffffff;
}

.feedback-overlay.incorrect {
    background: var(--danger);
    color: #ffffff;
}

/* ---------- Pantalla de Resultados ---------- */
.results-hero {
    text-align: center;
    margin-bottom: 28px;
}

.trophy-badge {
    font-size: 4em;
    margin-bottom: 8px;
    filter: drop-shadow(0 4px 15px rgba(217, 119, 6, 0.3));
    animation: float 3s ease-in-out infinite;
}

.results-hero h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2em;
    font-weight: 800;
    color: var(--text-main);
}

.result-score {
    font-family: 'Outfit', sans-serif;
    font-size: 2.4em;
    font-weight: 900;
    color: var(--primary);
    margin-top: 8px;
}

.result-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.result-detail-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: var(--shadow-card);
}

.rd-icon {
    font-size: 1.4em;
    display: block;
    margin-bottom: 4px;
}

.rd-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5em;
    font-weight: 800;
    color: var(--text-main);
}

.rd-label {
    font-size: 0.8em;
    color: var(--text-muted);
}

.total-time-text {
    font-size: 0.95em;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.breakdown-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2em;
    text-align: left;
    margin-bottom: 12px;
    color: var(--text-main);
}

.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 28px;
    background: #ffffff;
}

.stats-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
    text-align: left;
}

.stats-table th, .stats-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.stats-table th {
    background: #f8fafc;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75em;
}

.stats-table tr:last-child td {
    border-bottom: none;
}

.results-actions {
    display: flex;
    gap: 12px;
}

.results-actions button {
    flex: 1;
}

/* ---------- Explorador de Países ---------- */
.explorer-header {
    text-align: left;
    margin-bottom: 20px;
}

.explorer-header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2em;
    font-weight: 800;
    margin-top: 10px;
    color: var(--text-main);
}

.search-box {
    position: relative;
    margin-bottom: 16px;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1em;
    color: var(--text-muted);
}

.explorer-search {
    width: 100%;
    padding: 14px 16px 14px 46px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1em;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    outline: none;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.explorer-search:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.explorer-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.filter-chip {
    padding: 8px 16px;
    font-size: 0.85em;
    font-weight: 700;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-sub);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(15, 23, 42, 0.02);
}

.filter-chip:hover {
    background: #f8fafc;
    color: var(--text-main);
}

.filter-chip.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.country-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
    max-height: 420px;
    overflow-y: auto;
    padding-right: 4px;
}

.country-item {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.country-item:hover {
    background: #f0f9ff;
    border-color: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.15);
}

.country-item-name {
    font-size: 0.85em;
    font-weight: 700;
    color: var(--text-main);
    text-align: center;
}

/* ---------- Modal Ficha de País ---------- */
.country-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.country-modal-content {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 580px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 32px;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: #f8fafc;
    color: var(--text-sub);
    font-size: 1.1em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger);
    color: #ffffff;
    border-color: var(--danger);
}

.modal-flag {
    text-align: center;
    margin-bottom: 12px;
}

.modal-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2em;
    font-weight: 800;
    text-align: center;
    color: var(--text-main);
    margin-bottom: 24px;
}

.modal-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.info-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    text-align: left;
}

.info-card .ic-icon {
    font-size: 1.4em;
    display: block;
    margin-bottom: 4px;
}

.info-card .ic-value {
    font-weight: 700;
    font-size: 0.95em;
    color: var(--text-main);
}

.info-card .ic-label {
    font-size: 0.75em;
    color: var(--text-muted);
}

.info-card.full-width {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 100%);
    border-color: #c7d2fe;
}

.info-card.facts-section {
    padding: 20px;
}

.facts-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid #c7d2fe;
}

.facts-header .ic-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15em;
    color: var(--primary-dark);
}

.facts-list {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.facts-list li {
    font-size: 0.9em;
    line-height: 1.5;
    color: var(--text-main);
}

/* ---------- Responsive Mobile Optimization ---------- */
@media (max-width: 640px) {
    body {
        padding: 8px 6px;
    }

    .container {
        padding: 20px 14px;
        border-radius: var(--radius-md);
        margin: 0 auto;
        box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06);
    }

    /* Menú Principal */
    .menu-header {
        margin-bottom: 20px;
    }

    .logo-globe {
        font-size: 2.2em;
    }

    .menu-header h1 {
        font-size: 2.1em;
    }

    .menu-subtitle {
        font-size: 0.9em;
    }

    .game-cards {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .game-card {
        padding: 16px 14px;
        gap: 10px;
        min-height: 52px;
    }

    .game-card.card-explorer {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .card-icon-wrapper {
        font-size: 1.8em;
        padding: 8px;
    }

    .card-title {
        font-size: 1.05em;
    }

    .card-desc {
        font-size: 0.82em;
    }

    /* Selector de Dificultad */
    .difficulty-selector {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .diff-card {
        padding: 16px 12px;
    }

    .diff-icon {
        font-size: 2em;
        margin-bottom: 4px;
    }

    .diff-title {
        font-size: 1.15em;
    }

    /* Pantalla de Juego */
    .game-header {
        margin-bottom: 12px;
        gap: 10px;
    }

    .game-mode-heading {
        font-size: 1.25em;
    }

    .hud {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 10px;
        margin-bottom: 12px;
    }

    .hud-icon {
        font-size: 1.1em;
    }

    .hud-label {
        font-size: 0.6em;
    }

    .hud-val {
        font-size: 0.9em;
    }

    .timer-bar-container {
        margin-bottom: 16px;
        height: 5px;
    }

    /* Contenedores de Silueta y Bandera */
    .silhouette-container {
        height: 220px;
        padding: 14px;
        margin-bottom: 16px;
    }

    .flag-display-container {
        height: 220px;
        padding: 14px;
        margin-bottom: 16px;
    }

    .silhouette-img, .flag-img {
        max-height: 95%;
        max-width: 95%;
    }

    .question-text {
        font-size: 1.05em;
        padding: 14px 16px;
        margin: 12px 0 16px 0;
    }

    .options-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .options-grid button {
        padding: 14px 16px;
        min-height: 50px;
        font-size: 0.95em;
    }

    /* Pantalla de Resultados */
    .trophy-badge {
        font-size: 3em;
    }

    .results-hero h1 {
        font-size: 1.8em;
    }

    .result-score {
        font-size: 1.9em;
    }

    .result-details {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .result-detail-card {
        padding: 10px 6px;
    }

    .rd-value {
        font-size: 1.1em;
    }

    .rd-label {
        font-size: 0.7em;
    }

    .results-actions {
        flex-direction: column;
        gap: 8px;
    }

    /* Explorador */
    .explorer-header h1 {
        font-size: 1.6em;
    }

    .explorer-search {
        padding: 12px 14px 12px 42px;
        font-size: 0.9em;
    }

    .filter-chip {
        padding: 6px 12px;
        font-size: 0.8em;
    }

    .country-grid {
        grid-template-columns: repeat(auto-fill, minmax(95px, 1fr));
        gap: 8px;
        max-height: 360px;
    }

    .country-item {
        padding: 10px 6px;
    }

    .country-item-name {
        font-size: 0.78em;
    }

    /* Modal Ficha de País */
    .country-modal {
        padding: 10px;
    }

    .country-modal-content {
        padding: 20px 14px;
        max-height: 90vh;
        border-radius: var(--radius-md);
    }

    .modal-title {
        font-size: 1.5em;
        margin-bottom: 16px;
    }

    .modal-info-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .info-card {
        padding: 10px 12px;
    }

    .facts-list {
        padding-left: 16px;
        gap: 8px;
    }

    .facts-list li {
        font-size: 0.85em;
    }
}

@media (max-width: 420px) {
    .result-details {
        grid-template-columns: 1fr;
    }

    .hud {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .silhouette-container, .flag-display-container {
        height: 190px;
    }
}