/* ===== SISTEMA DE TARJETAS DINÁMICAS MODERNAS ===== */

/* Variables CSS para tarjetas dinámicas */
:root {
    /* Colores para tarjetas dinámicas */
    --card-bg-primary: rgba(30, 41, 59, 0.8);
    --card-bg-secondary: rgba(51, 65, 85, 0.6);
    --card-bg-accent: rgba(139, 92, 246, 0.1);
    --card-border-primary: rgba(255, 255, 255, 0.1);
    --card-border-hover: rgba(139, 92, 246, 0.3);
    --card-shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --card-shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --card-shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --card-shadow-glow: 0 0 30px rgba(139, 92, 246, 0.2);
    
    /* Gradientes dinámicos */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    
    /* Efectos de glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    /* Animaciones */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== TARJETA BASE DINÁMICA ===== */
.dynamic-card {
    position: relative;
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    overflow: hidden;
    cursor: pointer;
}

.dynamic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
    z-index: 1;
}

.dynamic-card:hover::before {
    left: 100%;
}

.dynamic-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.dynamic-card > * {
    position: relative;
    z-index: 2;
}

/* ===== TARJETAS CON GRADIENTES ===== */
.dynamic-card.gradient-primary {
    background: var(--gradient-primary);
    color: white;
}

.dynamic-card.gradient-secondary {
    background: var(--gradient-secondary);
    color: white;
}

.dynamic-card.gradient-accent {
    background: var(--gradient-accent);
    color: white;
}

.dynamic-card.gradient-success {
    background: var(--gradient-success);
    color: white;
}

.dynamic-card.gradient-warning {
    background: var(--gradient-warning);
    color: white;
}

.dynamic-card.gradient-danger {
    background: var(--gradient-danger);
    color: white;
}

/* ===== TARJETAS GLASSMORPHISM ===== */
.dynamic-card.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    box-shadow: var(--glass-shadow);
}

.dynamic-card.glass:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ===== TARJETAS CON EFECTOS ESPECIALES ===== */
.dynamic-card.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.dynamic-card.pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

.dynamic-card.shimmer {
    position: relative;
    overflow: hidden;
}

.dynamic-card.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ===== TARJETAS DE ESTADÍSTICAS ===== */
.stat-card {
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform var(--transition-normal);
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== TARJETAS DE QUIZ ===== */
.quiz-card {
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.quiz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.quiz-card:hover::before {
    opacity: 0.1;
}

.quiz-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.quiz-card > * {
    position: relative;
    z-index: 2;
}

.quiz-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--accent-color);
    transition: transform var(--transition-normal);
}

.quiz-card:hover .quiz-icon {
    transform: scale(1.1) rotate(10deg);
}

.quiz-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.quiz-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.9rem;
}

.quiz-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.quiz-tag {
    background: var(--gradient-accent);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: transform var(--transition-fast);
}

.quiz-tag:hover {
    transform: scale(1.05);
}

/* ===== TARJETAS DE FEATURES ===== */
.feature-card {
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-secondary);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.feature-card:hover::before {
    opacity: 0.1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.03);
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.feature-card > * {
    position: relative;
    z-index: 2;
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(15deg);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-benefits {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.benefit-item {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.feature-card:hover .benefit-item {
    color: var(--text-primary);
}

/* ===== TARJETAS DE LEADERBOARD ===== */
.leaderboard-card {
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.leaderboard-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.leaderboard-header {
    text-align: center;
    margin-bottom: 2rem;
}

.leaderboard-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.leaderboard-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ===== TARJETAS DE RESULTADOS ===== */
.results-card {
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.results-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-success);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.results-card:hover::before {
    opacity: 0.1;
}

.results-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
}

.results-card > * {
    position: relative;
    z-index: 2;
}

/* ===== BOTONES DINÁMICOS ===== */
.btn-dynamic {
    position: relative;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-dynamic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-dynamic:hover::before {
    left: 100%;
}

.btn-dynamic.primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--card-shadow-light);
}

.btn-dynamic.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-medium), var(--card-shadow-glow);
}

.btn-dynamic.secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--card-shadow-light);
}

.btn-dynamic.secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-medium), var(--card-shadow-glow);
}

.btn-dynamic.accent {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--card-shadow-light);
}

.btn-dynamic.accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-medium), var(--card-shadow-glow);
}

/* ===== GRID RESPONSIVO ===== */
.cards-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.cards-grid-2 {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.cards-grid-3 {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-bottom: 2.5rem;
}

.cards-grid-4 {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    margin-bottom: 2.5rem;
}

/* ===== MEDIA QUERIES ===== */
@media (max-width: 768px) {
    .cards-grid,
    .cards-grid-2,
    .cards-grid-3,
    .cards-grid-4 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .dynamic-card,
    .stat-card,
    .quiz-card,
    .feature-card,
    .leaderboard-card,
    .results-card {
        padding: 1.25rem;
    }
    
    .stat-icon,
    .quiz-icon,
    .feature-icon {
        font-size: 2.5rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .quiz-title,
    .feature-title {
        font-size: 1.1rem;
    }
    
    .leaderboard-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .dynamic-card,
    .stat-card,
    .quiz-card,
    .feature-card,
    .leaderboard-card,
    .results-card {
        padding: 1rem;
        border-radius: 12px;
    }
    
    .stat-icon,
    .quiz-icon,
    .feature-icon {
        font-size: 2rem;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .quiz-title,
    .feature-title {
        font-size: 1rem;
    }
    
    .leaderboard-title {
        font-size: 1.75rem;
    }
    
    .btn-dynamic {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* ===== SECCIONES DE QUIZZES ===== */
.quizzes-section,
.computing-section {
    margin: 4rem 0;
    padding: 2rem 0;
}

.quizzes-container,
.computing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.quizzes-header,
.computing-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    text-align: center;
    line-height: 1.2;
    position: relative;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    opacity: 0.8;
}

.section-title i {
    color: var(--accent-color);
    font-size: 2.2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    opacity: 0.9;
}

/* Responsive para secciones de quizzes */
@media (max-width: 768px) {
    .quizzes-section,
    .computing-section {
        margin: 3rem 0;
        padding: 1.5rem 0;
    }
    
    .quizzes-header,
    .computing-header {
        margin-bottom: 3rem;
    }
    
    .cards-grid-3,
    .cards-grid-4 {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .section-title i {
        font-size: 1.8rem;
    }
    
    .section-description {
        font-size: 1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .quizzes-section,
    .computing-section {
        margin: 2rem 0;
        padding: 1rem 0;
    }
    
    .quizzes-header,
    .computing-header {
        margin-bottom: 2.5rem;
    }
    
    .cards-grid-3,
    .cards-grid-4 {
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        gap: 0.3rem;
    }
    
    .section-title i {
        font-size: 1.6rem;
    }
    
    .section-description {
        font-size: 0.95rem;
        padding: 0 0.5rem;
    }
}

/* ===== ANIMACIONES DE ENTRADA ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

/* ===== EFECTOS DE PARTÍCULAS ===== */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

.particles-bg::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(139, 92, 246, 0.1) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.1) 2px, transparent 2px);
    background-size: 50px 50px;
    animation: float 20s ease-in-out infinite;
}

/* ===== UTILIDADES ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.border-gradient {
    border: 2px solid transparent;
    background: linear-gradient(var(--card-bg-primary), var(--card-bg-primary)) padding-box,
                var(--gradient-primary) border-box;
}

.shadow-glow {
    box-shadow: var(--card-shadow-glow);
}

.backdrop-blur {
    backdrop-filter: blur(20px);
}

/* ===== SECCIÓN DE ENLACES ADICIONALES ===== */
.additional-links {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--card-bg-primary);
    border: 1px solid var(--card-border-primary);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow-light);
    transition: all var(--transition-normal);
}

.additional-links:hover {
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-heavy);
}

.links-header {
    text-align: center;
    margin-bottom: 2rem;
}

.links-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.links-title i {
    color: var(--accent-color);
    font-size: 1.3rem;
}

.links-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.links-grid {
    display: flex;
    justify-content: center;
    align-items: center;
}

.links-content {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.link-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.link-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-normal);
}

.link-button:hover::before {
    left: 100%;
}

.link-button:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--card-shadow-heavy), var(--card-shadow-glow);
    border-color: var(--card-border-hover);
}

.link-button i {
    font-size: 1rem;
    transition: transform var(--transition-fast);
}

.link-button:hover i {
    transform: scale(1.1);
}

/* Responsive para enlaces adicionales */
@media (max-width: 768px) {
    .additional-links {
        margin-top: 2rem;
        padding: 1.5rem;
    }
    
    .links-header {
        margin-bottom: 1.5rem;
    }
    
    .links-title {
        font-size: 1.3rem;
    }
    
    .links-description {
        font-size: 0.9rem;
    }
    
    .links-content {
        gap: 0.75rem;
    }
    
    .link-button {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .additional-links {
        margin-top: 1.5rem;
        padding: 1rem;
        border-radius: 16px;
    }
    
    .links-header {
        margin-bottom: 1rem;
    }
    
    .links-title {
        font-size: 1.2rem;
    }
    
    .links-description {
        font-size: 0.85rem;
    }
    
    .links-content {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .link-button {
        width: 100%;
        justify-content: center;
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
}