/* ==========================================================================
   Variables y Configuración Base
   ========================================================================== */
:root {
    /* Fondos */
    --bg-primary: #07080c;
    --bg-secondary: #0d0f14;
    --bg-tertiary: #13151c;

    /* Texto */
    --fg-primary: #f0f0f5;
    --fg-secondary: #a0a0b0;
    --fg-muted: #606070;

    /* Acentos */
    --accent-blue: #2B5F7F;
    --accent-cyan: #00B8D4;
    --accent-light: #4A90E2;

    /* Efectos & Sombras */
    --glow-blue: rgba(43, 95, 127, 0.4);
    --glow-cyan: rgba(0, 184, 212, 0.3);
    --glass-bg: rgba(13, 15, 20, 0.6);
    --glass-border: rgba(255, 255, 255, 0.05);

    /* Tipografía */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    /* Dimensiones y Espaciados */
    --nav-height: 80px;
    --section-padding: 100px 0;
    --container-width: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;

    /* Transiciones */
    --transition-fast: 200ms ease;
    --transition-normal: 300ms ease;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--fg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Canvas del Hero */
#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}

.section-padding {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: linear-gradient(to right, var(--fg-primary), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--fg-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    color: var(--fg-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-cyan);
}

ul {
    list-style: none;
}

/* ==========================================================================
   UI Components
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 32px;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--glow-blue);
    border-color: rgba(43, 95, 127, 0.4);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
    box-shadow: 0 4px 14px var(--glow-blue);
}

.btn-primary:hover {
    background-color: #35769e;
    box-shadow: 0 6px 20px var(--glow-blue);
    color: #fff;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--fg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
}

.btn-outline:hover {
    background: rgba(0, 184, 212, 0.1);
    box-shadow: 0 0 15px var(--glow-cyan);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 100;
    transition: background var(--transition-normal), border var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(7, 8, 12, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--fg-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-cyan);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--fg-primary);
    transition: all 0.3s;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background: linear-gradient(to top, var(--bg-primary), transparent);
    z-index: 1;
}

.hero-content {
    text-align: center;
    z-index: 10;
    pointer-events: auto;
    /* Para permitir clics en botones por encima del canvas */
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--fg-secondary);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ==========================================================================
   Stats Section
   ========================================================================== */
.stats {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    color: var(--fg-primary);
    margin-bottom: 8px;
    display: flex;
    justify-content: center;
    align-items: baseline;
}

.stat-symbol {
    font-size: 2rem;
    color: var(--accent-cyan);
}

.stat-label {
    color: var(--fg-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    background: rgba(0, 184, 212, 0.1);
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.card-desc {
    color: var(--fg-secondary);
    margin-bottom: 24px;
}

.feature-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--fg-secondary);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: bold;
}

/* ==========================================================================
   Process Timeline
   ========================================================================== */
.process {
    background-color: var(--bg-tertiary);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 24px;
    width: 2px;
    background: var(--glass-border);
}

.timeline-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    width: 50px;
    height: 50px;
    background: var(--bg-primary);
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: bold;
    font-size: 1.25rem;
    color: var(--accent-cyan);
    z-index: 2;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(0, 184, 212, 0.2);
}

.timeline-content {
    margin-left: 32px;
    flex-grow: 1;
}

.timeline-content h3 {
    margin-bottom: 8px;
    font-size: 1.25rem;
}

.timeline-content p {
    color: var(--fg-secondary);
}

/* ==========================================================================
   Use Cases Section
   ========================================================================== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    text-align: center;
}

.case-card .card-icon {
    margin: 0 auto 24px auto;
}

.simple-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--fg-secondary);
}

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

/* ==========================================================================
   Technologies Marquee
   ========================================================================== */
.tech {
    background-color: var(--bg-secondary);
    padding: 60px 0;
    overflow: hidden;
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.tech-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    padding: 24px 20px;
    width: 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.tech-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

.tech-icon {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-name {
    font-size: 0.85rem;
    color: var(--fg-secondary);
    text-align: center;
    font-weight: 500;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: center;
}

.pricing-card {
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--accent-blue);
    box-shadow: 0 0 30px rgba(43, 95, 127, 0.2);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-cyan);
    color: #000;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.plan-name {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--fg-secondary);
}

.plan-price {
    font-size: 1rem;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--glass-border);
}

.plan-price span {
    font-size: 3rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--fg-primary);
}

.pricing-card .btn {
    margin-top: auto;
}

.pricing-card .feature-list {
    margin-bottom: 40px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    background-color: var(--bg-tertiary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.contact-info>p {
    color: var(--fg-secondary);
    margin-bottom: 48px;
    font-size: 1.125rem;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
}

.detail-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.detail-item h4 {
    margin-bottom: 4px;
}

.detail-item a,
.detail-item p {
    color: var(--fg-secondary);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--fg-secondary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: 12px 16px;
    color: var(--fg-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 184, 212, 0.2);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--glass-border);
    background-color: var(--bg-primary);
    padding-bottom: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 20px;
}

.footer-tagline {
    color: var(--fg-secondary);
    margin-bottom: 24px;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    border: 1px solid var(--glass-border);
}

.social-links a:hover {
    background: var(--accent-cyan);
    color: #000;
    transform: translateY(-3px);
}

.footer-links h3 {
    margin-bottom: 24px;
    font-size: 1.125rem;
}

.footer-links a {
    display: block;
    color: var(--fg-secondary);
    margin-bottom: 12px;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
    color: var(--fg-muted);
    font-size: 0.875rem;
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */
@media (max-width: 991px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {

    .nav-links,
    .nav-actions .btn {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Animaciones */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}