/* Design System & Unified Question Styles - Aprendizaje Activo Corporate Brand */

:root {
    --primary-celeste: #00A8E8;
    --celeste-light: #40C3F7;
    --celeste-dark: #007EA7;
    --header-blue-start: #094770;
    --header-blue-end: #0e6199;
    --accent-yellow: #FACC15;
    
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 30px rgba(0,0,0,0.12);

    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

/* Tarjeta Elegante de Pregunta */
.question-card {
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-left: 5px solid transparent;
}

.question-card:hover, .question-card:focus-within {
    border-color: var(--gray-300);
    border-left-color: var(--primary-celeste);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.question-card.completed {
    border-left-color: #10b981;
    background: linear-gradient(180deg, #ffffff 0%, rgba(16, 185, 129, 0.02) 100%);
}

.question-title {
    font-size: clamp(0.95rem, 2.5vw, 1.08rem);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
}

.question-number-badge {
    background: rgba(9, 71, 112, 0.08);
    color: var(--header-blue-start);
    font-weight: 800;
    font-size: 0.8rem;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Opciones Estilo Likert Elegante & Botones Táctiles Móviles */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.65rem;
}

.option-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.75rem 0.85rem;
    min-height: 48px; /* Táctil Celular Estándar Apple/Android */
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.option-pill:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.option-pill input[type="radio"] {
    display: none; /* Ocultar radio nativo para diseño elegante */
}

.option-pill.active, .option-pill:has(input[type="radio"]:checked) {
    background: linear-gradient(135deg, var(--header-blue-start), var(--header-blue-end)) !important;
    border-color: var(--header-blue-start) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(9, 71, 112, 0.25);
    font-weight: 700;
    transform: scale(1.01);
}

/* Ajuste Móvil Celular */
@media (max-width: 768px) {
    .question-card {
        padding: 1.15rem 1rem;
        margin-bottom: 1.15rem;
        border-radius: var(--radius-lg);
    }
    .options-grid {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: 0.5rem;
    }
    .option-pill {
        padding: 0.65rem 0.5rem;
        font-size: 0.82rem;
        min-height: 44px;
    }
}