/* ===================================
   CSS VARIABLES & DESIGN SYSTEM
   =================================== */
:root {
    /* Colors */
    --color-bg-primary: #050714;
    --color-bg-secondary: #0a0e27;
    --color-bg-card: rgba(15, 23, 42, 0.6);
    --color-bg-card-hover: rgba(30, 41, 59, 0.8);

    --color-primary: #3b82f6;
    --color-primary-light: #60a5fa;
    --color-primary-dark: #2563eb;
    --color-accent: #00f2fe;
    --color-accent-purple: #c471ed;

    --color-text-primary: #ffffff;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #c471ed 100%);
    --gradient-hero: radial-gradient(circle at center, #1e293b 0%, #050714 100%);
    --gradient-card: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(196, 113, 237, 0.1) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;

    /* Effects */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--color-primary-light);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-md);
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: var(--font-size-lg);
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
}

.logo:hover {
    color: var(--color-primary-light);
}

.logo-icon {
    font-size: 1.5rem;
}

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

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(0deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-2xl) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-logo-large {
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.4));
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ===================================
   ANIMATIONS
   =================================== */
.fade-in {
    animation: fadeIn 1s ease-out;
}

.fade-in-delay-1 {
    animation: fadeIn 1s ease-out 0.2s backwards;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.4s backwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    cursor: pointer;
}

.service-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: transform var(--transition-base);
}

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

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.service-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================================
   WHY US SECTION
   =================================== */
.why-us {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-primary);
}

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

.why-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.why-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.3));
}

.why-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

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

/* ===================================
   HOW IT WORKS SECTION
   =================================== */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.step-number {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 80px;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.step-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================================
   SECTORS SECTION
   =================================== */
.sectors {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-primary);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.sector-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    text-align: center;
}

.sector-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.sector-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.sector-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.sector-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #0a0e27 0%, #1e1b4b 100%);
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

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

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--color-bg-secondary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer-contact p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.footer-contact a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(59, 130, 246, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: color var(--transition-fast);
}

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

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2.5rem;
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.5rem;
    }

    .nav-links {
        gap: var(--spacing-sm);
    }

    .nav-link {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-md);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .services-grid,
    .sectors-grid {
        grid-template-columns: 1fr;
    }

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

    .step {
        flex-direction: column;
    }

    .step-number {
        min-width: auto;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

/* ===================================
   MODALS
   =================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    padding-top: 50px;
}

.modal-content {
    background: var(--color-bg-secondary);
    margin: 5% auto;
    padding: 2rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    width: 80%;
    max-width: 800px;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    color: var(--color-text-muted);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.close:hover {
    color: var(--color-primary-light);
}

.modal-body {
    margin-top: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 1rem;
}

.modal-body h3 {
    color: var(--color-primary-light);
    margin: 1.5rem 0 0.75rem;
}

.modal-body p,
.modal-body li {
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

.modal-body ul {
    padding-left: 1.5rem;
}

/* Custom Scrollbar for Modal */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 10px;
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

.modal-icon {
    font-size: 2.5rem;
}

.roi-container {
    margin-top: 2.5rem;
    background: rgba(59, 130, 246, 0.05);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    border: 1px dashed rgba(59, 130, 246, 0.3);
}

.roi-container h3 {
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    font-size: var(--font-size-xl);
    text-align: center;
}

.roi-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.roi-table th {
    text-align: left;
    padding: 1rem;
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-primary);
    font-weight: 700;
}

.roi-table td {
    padding: 1rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.roi-table tr:last-child td {
    border-bottom: none;
}

.roi-table td:last-child {
    color: var(--color-accent);
    font-weight: 600;
}

/* Service & Sector Card Hover Highlight */
.service-card,
.sector-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.service-card::before,
.sector-card::before {
    content: 'Ver impacto en sector';
    position: absolute;
    bottom: 0.5rem;
    right: 1.5rem;
    font-size: 0.75rem;
    color: var(--color-primary-light);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card::before {
    content: 'Ver más detalles';
}

.service-card:hover::before,
.sector-card:hover::before {
    opacity: 1;
}