/* ===== Variables de Color y Configuración ===== */
:root {
    /* Colores Principales */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #10b981;
    --color-accent: #8b5cf6;
    
    /* Grises */
    --color-bg-dark: #0f172a;
    --color-bg-medium: #1e293b;
    --color-bg-light: #334155;
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Bordes */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* ===== Reset y Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===== Header ===== */
.header {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.logo-text .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
    background: var(--gradient-primary);
    color: white;
    font-weight: 500;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInDown 0.6s ease;
}

.badge-icon {
    font-size: 1.2rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease 0.2s both;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.6s both;
}

.metric {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all 0.3s ease;
}

.metric:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.hero-image {
    margin-top: var(--spacing-2xl);
    animation: fadeIn 0.8s ease 0.8s both;
}

.image-placeholder {
    background: rgba(255, 255, 255, 0.03);
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    color: var(--color-text-muted);
}

.placeholder-content svg {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    animation: pulse 2s ease-in-out infinite;
}

.placeholder-content p {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.placeholder-content small {
    font-size: 0.875rem;
    opacity: 0.7;
}

/* ===== Sections ===== */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

/* ===== Comparison Table ===== */
.metrics-section {
    background: var(--color-bg-medium);
}

.comparison-table {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-top: var(--spacing-xl);
}

.table-header {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    gap: var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    padding: var(--spacing-md);
    font-weight: 600;
    border-bottom: 2px solid rgba(37, 99, 235, 0.3);
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.table-row:hover {
    background: rgba(255, 255, 255, 0.05);
}

.table-row:last-child {
    border-bottom: none;
}

.col-1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.col-1 .icon {
    font-size: 1.5rem;
}

.col-2, .col-3 {
    display: flex;
    align-items: center;
}

.highlight-value {
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 1.125rem;
}

.table-note {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
    font-style: italic;
}

@media (max-width: 768px) {
    .table-header,
    .table-row {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        display: none;
    }
    
    .table-row {
        padding: var(--spacing-md);
    }
    
    .col-1 {
        font-weight: 600;
        margin-bottom: 0.5rem;
    }
    
    .col-2::before {
        content: 'Este Sistema: ';
        font-weight: 600;
        margin-right: 0.5rem;
        color: var(--color-text-muted);
    }
    
    .col-3::before {
        content: 'Benchmark: ';
        font-weight: 600;
        margin-right: 0.5rem;
        color: var(--color-text-muted);
    }
}

/* ===== Value Cards ===== */
.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.value-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.value-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.value-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== Challenges Section ===== */
.challenges-section {
    background: var(--color-bg-medium);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

@media (max-width: 768px) {
    .challenges-grid {
        grid-template-columns: 1fr;
    }
}

.challenge-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.challenge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.challenge-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.challenge-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.challenge-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.challenge-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.challenge-item strong {
    display: block;
    color: var(--color-primary-light);
    margin-bottom: 0.5rem;
}

.challenge-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.challenge-result {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-sm);
}

.result-icon {
    font-size: 1.5rem;
    color: var(--color-secondary);
}

/* ===== Architecture Section ===== */
.architecture-diagram {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.arch-layer {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.arch-layer:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
}

.arch-layer h4 {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-light);
}

.arch-components {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.arch-component {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.component-icon {
    font-size: 1.25rem;
}

.arch-specs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.arch-arrow {
    text-align: center;
    font-size: 2rem;
    color: var(--color-primary);
    animation: bounce 2s ease-in-out infinite;
}

.layer-sensors {
    background: rgba(139, 92, 246, 0.05);
    border-color: rgba(139, 92, 246, 0.3);
}

.layer-processing {
    background: rgba(37, 99, 235, 0.05);
    border-color: rgba(37, 99, 235, 0.3);
}

.layer-core {
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.3);
}

.layer-output {
    background: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.3);
}

/* ===== Tech Stack Section ===== */
.tech-stack-section {
    background: var(--color-bg-medium);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.tech-category h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-light);
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: var(--color-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    cursor: default;
}

.tech-badge:hover {
    background: rgba(37, 99, 235, 0.2);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.skill-category {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.skill-category h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-light);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.skill-list li:last-child {
    border-bottom: none;
}

.skill-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: bold;
}

/* ===== Testing Section ===== */
.testing-section {
    background: var(--color-bg-medium);
}

.testing-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.stat-detail {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.cta-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-align: left;
}

.benefit-icon {
    color: var(--color-secondary);
    font-size: 1.25rem;
    font-weight: bold;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary-light);
}

.footer-social p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

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

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .value-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .testing-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-benefits {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-metrics {
        grid-template-columns: 1fr;
    }
    
    .testing-stats {
        grid-template-columns: 1fr;
    }
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .nav,
    .cta-section,
    .footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}