:root {
    /* Colores Elegantes Corporativos */
    --primary-elegant: #2C3E50;
    --secondary-elegant: #34495E;
    --accent-gold: #F39C12;
    --accent-platinum: #BDC3C7;
    --deep-blue: #1E3A8A;
    --royal-purple: #6366F1;
    --emerald: #10B981;
    --ruby: #EF4444;
    --amber: #F59E0B;
    --dark-bg: #0F172A;
    --darker-bg: #020617;
    --card-bg: rgba(30, 58, 138, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --text-light: #F8FAFC;
    --text-accent: #E2E8F0;
    --border-elegant: rgba(243, 156, 18, 0.3);
    --shadow-elegant: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 50%, var(--primary-elegant) 100%);
    min-height: 100vh;
    color: var(--text-light);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Partículas Cuánticas de Fondo */
.quantum-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(45deg, var(--accent-gold), var(--royal-purple));
    border-radius: 50%;
    animation: quantumFloat 6s infinite ease-in-out;
    opacity: 0.7;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Header Elegante con Selector de Idiomas */
.header {
    margin-bottom: 40px;
    padding: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border-elegant);
    position: relative;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.header-main {
    flex: 1;
    text-align: center;
}

.header h1 {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--accent-gold), var(--royal-purple), var(--emerald), var(--accent-gold));
    background-size: 400% 400%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: elegantGradient 8s ease infinite;
    margin-bottom: 15px;
    text-shadow: 0 0 50px rgba(243, 156, 18, 0.5);
}

.header .subtitle {
    font-size: 1.4rem;
    color: var(--text-accent);
    font-weight: 300;
    margin-bottom: 20px;
}

.ai-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(45deg, var(--emerald), var(--deep-blue));
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
}

.quantum-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-gold);
    border-radius: 50%;
    animation: quantumPulse 2s infinite;
}

/* Selector de Idiomas */
.language-selector {
    position: relative;
    min-width: 120px;
    z-index: 200;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--border-elegant);
    padding: 10px 16px;
    border-radius: 25px;
    color: var(--text-light);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 1rem;
}

.language-btn:hover {
    background: var(--card-bg);
    border-color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

.language-btn .flag {
    font-size: 1.5rem;
}

.language-btn .arrow {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.language-btn.active .arrow {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-elegant);
    border-radius: 15px;
    padding: 8px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 9999;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-light);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    width: 100%;
    text-align: left;
}

.language-option:hover {
    background: var(--card-bg);
    transform: translateX(5px);
}

.language-option.active {
    background: linear-gradient(45deg, var(--accent-gold), var(--amber));
    color: var(--dark-bg);
}

.language-option .flag {
    font-size: 1.5rem;
}

/* KPIs Dashboard */
.kpis-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.kpi-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid var(--border-elegant);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-elegant);
    border-color: var(--accent-gold);
}

.kpi-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 10px var(--accent-gold));
}

.kpi-content h3 {
    font-size: 0.9rem;
    color: var(--text-accent);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.kpi-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 5px;
}

.kpi-trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 12px;
}

.kpi-trend.positive {
    background: linear-gradient(45deg, var(--emerald), #16A085);
    color: white;
}

.kpi-trend.negative {
    background: linear-gradient(45deg, var(--ruby), #C0392B);
    color: white;
}

.kpi-trend.ai {
    background: linear-gradient(45deg, var(--royal-purple), var(--deep-blue));
    color: white;
}

.kpi-trend.quantum {
    background: linear-gradient(45deg, var(--accent-gold), var(--amber));
    color: var(--dark-bg);
}

/* Área de Carga de Datos */
.data-upload-area {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.upload-container {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 2px dashed var(--border-elegant);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.upload-container:hover {
    border-color: var(--accent-gold);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    filter: drop-shadow(0 0 10px var(--accent-gold));
}

.upload-btn,
.generate-btn {
    background: linear-gradient(45deg, var(--accent-gold), var(--amber));
    color: var(--dark-bg);
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-top: 15px;
}

.upload-btn:hover,
.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(243, 156, 18, 0.3);
}

.generate-data-container {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-elegant);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Gráficos */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.chart-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid var(--border-elegant);
    transition: var(--transition-smooth);
}

.chart-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-elegant);
}

.chart-card h3 {
    margin-bottom: 20px;
    color: var(--accent-gold);
    font-size: 1.1rem;
    text-align: center;
}

.chart-card canvas {
    max-height: 300px;
}

/* Centro de Reportes Ejecutivos */
.reports-center {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border-elegant);
}

.reports-center h3 {
    margin-bottom: 20px;
    color: var(--accent-gold);
    font-size: 1.3rem;
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.report-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-elegant);
    transition: var(--transition-smooth);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.report-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(243, 156, 18, 0.1), transparent);
    transition: left 0.6s;
}

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

.report-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-elegant);
    border-color: var(--accent-gold);
}

.report-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    filter: drop-shadow(0 0 10px var(--accent-gold));
}

.report-card h4 {
    color: var(--text-light);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.report-card p {
    color: var(--text-accent);
    margin-bottom: 20px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.report-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.export-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.export-btn.pdf {
    background: linear-gradient(45deg, var(--ruby), #C0392B);
    color: white;
}

.export-btn.excel {
    background: linear-gradient(45deg, var(--emerald), #16A085);
    color: white;
}

.export-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.export-btn:active {
    transform: translateY(0);
}

/* Loading States para Reportes */
.report-card.generating {
    pointer-events: none;
    opacity: 0.7;
}

.report-card.generating::after {
    content: '⏳ Generando...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--dark-bg);
    color: var(--accent-gold);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 600;
    border: 1px solid var(--border-elegant);
}

/* AI Insights */
.ai-insights {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border-elegant);
}

.ai-insights h3 {
    margin-bottom: 20px;
    color: var(--accent-gold);
    font-size: 1.3rem;
}

.insights-container {
    display: grid;
    gap: 15px;
}

.insight-item {
    background: var(--card-bg);
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-gold);
    display: flex;
    align-items: center;
    gap: 15px;
}

.insight-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 5px var(--accent-gold));
}

/* Tabla Inteligente */
.intelligent-table {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border-elegant);
}

.intelligent-table h3 {
    margin-bottom: 20px;
    color: var(--accent-gold);
    font-size: 1.3rem;
}

.table-container {
    overflow-x: auto;
    border-radius: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
}

th,
td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-elegant);
}

th {
    background: var(--primary-elegant);
    color: var(--accent-gold);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

tr:hover {
    background: var(--glass-bg);
}

/* Footer con Iconos de Redes Sociales CENTRADOS */
.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-elegant);
    margin-top: 60px;
    padding: 40px 0 20px;
}

.footer-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 25px;
}

.footer-info h3 {
    color: var(--accent-gold);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.footer-info p {
    color: var(--text-accent);
    font-size: 1rem;
}

.social-links {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* EFECTO DE SALTO PARA ICONOS DE REDES SOCIALES */
.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--accent-gold), var(--amber));
    border-radius: 50%;
    color: var(--dark-bg);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
    animation: socialBounce 2s ease-in-out infinite;
}

.social-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.social-icon:hover::before {
    left: 100%;
}

.social-icon:hover {
    transform: translateY(-10px) scale(1.1);
    box-shadow: 0 15px 30px rgba(243, 156, 18, 0.4);
    animation-play-state: paused;
}

.social-icon:nth-child(1) {
    animation-delay: 0s;
}

.social-icon:nth-child(2) {
    animation-delay: 0.3s;
}

.social-icon:nth-child(3) {
    animation-delay: 0.6s;
}

.social-icon:nth-child(4) {
    animation-delay: 0.9s;
}

.social-icon svg {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.social-icon:hover svg {
    transform: rotate(15deg) scale(1.1);
}

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-elegant);
    color: var(--text-accent);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .header-content {
        flex-direction: column;
    }
    
    .header-main {
        text-align: center;
    }
    
    .language-selector {
        align-self: center;
    }
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2.5rem;
    }
    
    .kpis-container {
        grid-template-columns: 1fr;
    }
    
    .data-upload-area {
        grid-template-columns: 1fr;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        gap: 20px;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
}