/* ============================================
   ESTILOS GENERALES
   ============================================ */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overscroll-behavior: none;
    background-color: #f8f9fa !important;
}

/* Contenedor principal */
.vh-100 {
    height: 100vh !important;
    height: 100dvh !important;
}

.flex-col {
    flex-direction: column;
}

/* ============================================
   PANTALLAS
   ============================================ */
.screen {
    display: none !important;
    height: 100vh;
    width: 100%;
}

.screen.active {
    display: flex !important;
}

.screen.d-none {
    display: none !important;
}

/* ============================================
   PANTALLA DE BIENVENIDA
   ============================================ */
#welcome-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 16px;
    /*
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
    Imágenes
    > Biblioteca: https://images.unsplash.com/photo-1524995997946-a1c2e315a42f?q=80&w=2070&auto=format&fit=crop
    Biblioteca2: https://images.unsplash.com/photo-1507842217343-583bb7270b66?q=80&w=2070&auto=format&fit=crop
    Estilográfica: https://images.unsplash.com/photo-1455390582262-044cdead277a?q=80&w=2073&auto=format&fit=crop
    Vinilos: https://images.unsplash.com/photo-1461360228754-6e81c478b882?q=80&w=2074&auto=format&fit=crop
    Fórmulas: https://images.unsplash.com/photo-1635070041078-e363dbe005cb?q=80&w=2070&auto=format&fit=crop
    Mapa mundi: https://images.unsplash.com/photo-1524661135-423995f22d0b?q=80&w=2074&auto=format&fit=crop
    Universo: https://images.unsplash.com/photo-1516339901601-2e1b62dc0c45?q=80&w=1942&auto=format&fit=crop
    Color: https://images.unsplash.com/photo-1508615070457-7baeba4003ab?q=80&w=1740&auto=format&fit=crop
    */
    background: 
        linear-gradient(135deg, rgba(0, 12, 35, 0.95) 0%, rgba(0, 25, 60, 0.95) 100%),
        url('https://images.unsplash.com/photo-1524995997946-a1c2e315a42f?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-blend-mode: overlay;
    /*background-color: #ffba4f;*/
}

#welcome-screen .text-center {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px; /* Espacio uniforme entre todos los elementos */
}

/* Ajustar el texto de bienvenida para que sea legible sobre azul */
#welcome-screen h1 {
    color: white !important;
    margin-bottom: 0 !important; /* El gap ya controla el espacio */
    font-size: 2rem;
    font-weight: bold;
    background: rgba(0, 0, 0, 0.4);
    padding: 30px 24px;
    border-radius: 15px;
    display: inline-block;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    /*box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);*/
    
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.8),
        0 0 30px rgba(0, 0, 0, 0.5);
    
}

#welcome-screen .lead {
    color: rgba(255, 255, 255, 0.9) !important;
    margin-bottom: 0 !important; /* El gap ya controla el espacio */    
    opacity: 0.9;
    font-size: 1.2rem;
}

/* Mantener tarjetas blancas con blur */
#welcome-screen .card {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    /*border-radius: 20px !important;*/
    margin-bottom: 0 !important; /* El gap ya controla el espacio */    
}

#welcome-screen #start-btn {
    background: white;
    color: #0d6efd;
    border: 3px solid #00265d;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    margin-top: 10px; /* Espacio extra antes del botón */
    align-self: center;
    min-width: 200px;    
}

#welcome-screen #start-btn i {
    color: #0d6efd;
    transition: transform 0.2s ease;
}

#welcome-screen #start-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

#welcome-screen #start-btn:hover i {
    transform: translateX(4px);
}

#welcome-screen #start-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

#welcome-screen #already-played-message {
    margin-top: 16px;
}

#date-badge {
    font-size: 1rem;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50px;
}

#refresh-btn {
    border: 2px solid #0d6efd;
    background: white;
    color: #0d6efd;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.2);
}

#refresh-btn:hover {
    background: #0d6efd;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(13, 110, 253, 0.3);
}

#refresh-btn:active {
    transform: scale(0.95);
}

#refresh-btn i {
    font-size: 1.1rem;
}

#refresh-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    background: #e9ecef;
    border-color: #adb5bd;
    color: #6c757d;
}

/* Animación para el icono */
.bi-spin {
    animation: spin 1s infinite linear;
    display: inline-block;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   INSTRUCCIONES DESPLEGABLES
   ============================================ */
#instructions-header {
    border-radius: 20px 20px 0 0 !important;
    transition: background-color 0.2s ease;
}

#instructions-header:hover {
    background-color: #f8f9fa !important;
}

#instructions-header:active {
    background-color: #e9ecef !important;
}

#instructions-content {
    transition: all 0.3s ease;
    border-top: 1px solid rgba(0,0,0,0.05);
    padding-top: 1rem !important;
}

/* Rotación del icono cuando está expandido */
#instructions-icon {
    transition: transform 0.3s ease;
}

#instructions-icon.expanded {
    transform: rotate(180deg);
}

/* Ajuste para móviles */
@media (max-width: 480px) {

    #welcome-screen .text-center {
        gap: 34px; 
    }
    
    #instructions-header {
        padding: 12px 16px !important;
    }
    
    #instructions-header h5 {
        font-size: 1rem;
    }
}

/* ============================================
   PANTALLA DE JUEGO
   ============================================ */
#game-screen {
    background-color: #f8f9fa;
    height: 100vh;
    overflow: hidden;
}

#game-screen.active {
    display: flex !important;
    flex-direction: column;
}

/* Opciones de respuesta */
.options-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-btn {
    width: 100%;
    padding: 16px 20px;
    font-size: 1rem;
    text-align: left;
    border: 2px solid #dee2e6;
    border-radius: 16px !important;
    background-color: white;
    color: #212529;
    transition: all 0.2s ease;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

.option-btn:hover {
    background-color: #f8f9fa;
    border-color: #0d6efd;
}

.option-btn:active {
    transform: scale(0.98);
    background-color: #e7f1ff;
}

.option-btn.selected {
    background-color: #0d6efd;
    border-color: #0d6efd;
    color: white;
}

.option-btn.correct {
    background-color: #198754;
    border-color: #198754;
    color: white;
    pointer-events: none;
}

.option-btn.incorrect {
    background-color: #dc3545;
    border-color: #dc3545;
    color: white;
    pointer-events: none;
}

.option-btn.disabled {
    opacity: 0.65;
    pointer-events: none;
}

/* Timer */
.progress-bar {
    transition: width 1s linear;
}

#timer-display {
    font-size: 1.2rem;
    min-width: 60px;
    text-align: right;
}

.timer-critical {
    color: #dc3545;
    font-weight: 700;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
    100% { opacity: 1; transform: scale(1); }
}

/* Badge de Daily Quiz */
.badge.bg-info {
    background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%) !important;
    color: white;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    margin-left: 8px;
}

/* ============================================
   CATEGORÍAS (estilo compacto)
   ============================================ */
.category-badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(13, 110, 253, 0.1);
    color: #0d6efd;
    border-radius: 30px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    margin-right: 8px;
    vertical-align: middle;
    border: 1px solid rgba(13, 110, 253, 0.2);
    text-transform: uppercase;
}

/* Colores sólidos con sombra sutil */
.category-badge[data-category="geografia"] {
    background: #00acc1;  /* Azul verdoso */
    color: white;
    box-shadow: 0 2px 4px rgba(0, 172, 193, 0.3);
}

.category-badge[data-category="arte-literatura"] {
    background: #d81b60;  /* Rosa */
    color: white;
    box-shadow: 0 2px 4px rgba(216, 27, 96, 0.3);
}

.category-badge[data-category="historia"] {
    background: #8e24aa;  /* Púrpura */
    color: white;
    box-shadow: 0 2px 4px rgba(142, 36, 170, 0.3);
}

.category-badge[data-category="entretenimiento"] {
    background: #ffb300;  /* Amarillo */
    color: #333;
    box-shadow: 0 2px 4px rgba(255, 179, 0, 0.3);
}

.category-badge[data-category="ciencias-naturaleza"] {
    background: #43a047;  /* Verde */
    color: white;
    box-shadow: 0 2px 4px rgba(67, 160, 71, 0.3);
}

.category-badge[data-category="deportes-pasatiempos"] {
    background: #e53935;  /* Rojo */
    color: white;
    box-shadow: 0 2px 4px rgba(229, 57, 53, 0.3);
}

#question-text {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    font-size: 1rem;
    font-weight: bold;
    line-height: 1.4;
}

@media (max-width: 480px) {
    #question-text {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    
    .category-badge {
        margin-right: 0;
        margin-bottom: 4px;
    }
}

/* ============================================
   BOTÓN CONTINUAR
   ============================================ */
#continue-container {
    animation: fadeIn 0.3s ease;
}

#continue-btn {
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
    transition: all 0.2s ease;
}

#continue-btn:active {
    transform: scale(0.95);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   PANTALLA DE RESULTADOS
   ============================================ */
#results-screen {
    background: linear-gradient(135deg, #1e2b3c 0%, #2c3e50 100%);
    color: #ffffff;
}

#results-screen .text-center {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

#results-screen .card {
    background: rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px !important;
    min-width: 280px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

#results-screen .card-body {
    padding: 2rem !important;
}

#results-screen .card h3 {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1rem !important;
}

#score-display {
    font-size: 3rem !important;
    font-weight: 800 !important;
    background: linear-gradient(135deg, #fff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin: 0.5rem 0 !important;
}

#score-message {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 1.3rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

#result-date {
    font-size: 1rem;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    display: inline-block;
}

/* Botones de acción */
#results-screen .d-flex {
    /*margin-top: 2rem;*/
}

#results-screen .btn-outline-primary {
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    padding: 12px 24px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

#results-screen .btn-outline-primary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

#results-screen .btn-primary {
    background: rgba(255, 255, 255, 0.95);
    border: none;
    color: #1e2b3c;
    padding: 12px 24px;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

#results-screen .btn-primary:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Mensaje de "vuelve mañana" */
#results-screen .text-secondary {
    color: rgba(255, 255, 255, 0.6) !important;
    font-size: 0.95rem;
    margin-top: 1rem !important;
    padding: 0.2rem 0.8rem 0.2rem 0.8rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    display: inline-block;
}

#results-screen .text-secondary i {
    color: rgba(255, 255, 255, 0.8);
    margin-right: 6px;
}

/* Icono del trofeo */
#results-screen .bi-trophy {
    color: #ffd700 !important;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    font-size: 4rem !important;
    margin-bottom: 1rem !important;
}

/* Título principal */
#results-screen h2 {
    color: white;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1rem !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ============================================
   MENSAJE DE TIMEOUT
   ============================================ */
.timeout-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #fff3cd;
    color: #856404;
    padding: 12px 20px;
    border-radius: 12px;
    margin: 16px auto 10px;
    max-width: 90%;
    border-left: 4px solid #dc3545;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    animation: fadeIn 0.3s ease;
}

.timeout-message i {
    font-size: 1.4rem;
    color: #dc3545;
}

.timeout-message .message-title {
    font-size: 1rem;
    font-weight: 600;
}

/* ============================================
   MEJORAS PARA MÓVILES
   ============================================ */
@media (hover: none) and (pointer: coarse) {
    .option-btn {
        padding: 18px 20px;
    }
    
    .btn {
        padding: 16px 24px;
    }
}

@media (max-width: 360px) {
    h1.display-5 {
        font-size: 1.8rem;
    }
    
    .option-btn {
        padding: 14px 16px;
        font-size: 0.95rem;
    }
}

.container-fluid {
    overflow-x: hidden;
}