/*
 * main.css - Rediseño Porta Aberta 2026
 * Enfoque: Minimalista, Innovador, Premium.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@700;800&display=swap');

:root {
    /* Paleta Premium */
    --primary: #0A1C3C;
    /* Deep Navy */
    --accent: #00D2FF;
    /* Electric Cyan */
    --accent-dark: #0096FF;
    --text-main: #1F2937;
    --text-muted: #6B7280;
    --bg-main: #F9FAFB;
    --white: #FFFFFF;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-blur: blur(12px);

    /* Shadows & Radii */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--primary);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* Header & Nav */
.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.main-header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--glass-border);
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    transition: var(--transition);
}

.main-header.scrolled .logo img {
    height: 40px;
}

.main-nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.main-nav a {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 0.05em;
    position: relative;
}

.main-header.scrolled .main-nav a {
    color: var(--primary);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover {
    color: var(--accent);
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

.background-slider {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(10, 28, 60, 0.7), rgba(10, 28, 60, 0.4));
    z-index: 0;
}

.hero-text {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 500;
    color: var(--white);
    max-width: 800px;
    margin: 0 auto 2.5rem;
    line-height: 1.4;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    /* Mejora visibilidad sobre imágenes */
}

/* Sections & Content */
.content-section {
    max-width: 1280px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-card {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid #E5E7EB;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.9375rem;
    display: inline-block;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 210, 255, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 210, 255, 0.23);
}

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

.btn-secondary:hover {
    background: var(--accent);
    color: var(--primary);
}

/* Footer */
.main-footer {
    background: var(--primary);
    color: var(--white);
    padding: 4rem 2rem;
    margin-top: 6rem;
}

.footer-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-col h4 {
    color: var(--accent);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

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

.footer-bottom {
    max-width: 1280px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.main-header.scrolled .menu-toggle span {
    background: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
        /* Will implement mobile menu JS/CSS later */
    }

    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .content-section {
        margin: 2rem auto;
        padding: 0 1rem;
    }

    .section-card {
        padding: 2rem 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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


/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 2rem;
    z-index: 10;
    cursor: pointer;
    animation: bounce 2s infinite;
    opacity: 0.8;
    transition: var(--transition);
}

.scroll-indicator:hover {
    opacity: 1;
    color: var(--accent);
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.reveal {
    opacity: 0;
    transition: var(--transition);
}

.reveal.active {
    animation: fadeInUp 0.8s ease forwards;
}