/* 
 * Security Agency Website - Premium Theme
 * Colors: Deep Navy Blue, Gold, White, Light Gray
 */

:root {
    --primary-color: #0d1b2a; /* Deep Navy */
    --secondary-color: #1b263b; /* Lighter Navy */
    --accent-color: #d4af37; /* Gold */
    --text-light: #e0e1dd;
    --text-dark: #1b263b;
    --white: #ffffff;
    --bg-light: #f8f9fa;
    --transition: all 0.3s ease;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* --- Header & Nav --- */
header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--white);
}

/* --- Hero Slideshow --- */
.hero {
    height: 100vh;
    width: 100%;
    position: relative;
    overflow: hidden;
    margin-top: 0; /* Nav is fixed, but we might want it transparent styling later, for now solid */
}

/* Fix for fixed header overlap */
body {
    padding-top: 70px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

.slide.active {
    opacity: 1;
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 27, 42, 0.6); /* Dark overlay */
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    width: 80%;
    color: var(--white);
}

.hero-title {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1rem;
    text-transform: uppercase;
    animation: fadeInUp 1s ease forwards;
    opacity: 0;
    transform: translateY(20px);
}

.hero-subtitle {
    font-size: 1.7rem;
    font-weight: 400;
    color: var(--accent-color);
    animation: fadeInUp 1s ease 0.3s forwards;
    opacity: 0;
    transform: translateY(20px);
}

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

/* --- Nosotros --- */

#nosotros {
    position: absolute;
    top: 0;
    left: 0;
    width: 300px;
    height: 200px;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

/* --- Sections --- */
.section {
    padding: 5rem 10%;
    border-bottom: 1px solid #ddd;
}

.section-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4rem;
}

.section-image {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

.section-image img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.section-image:hover img {
    transform: scale(1.05);
}

.section-text {
    flex: 1;
    min-width: 300px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 3px;
    background: var(--accent-color);
    bottom: -10px;
    left: 0;
}

.section-content p {
    margin-bottom: 1rem;
    color: #555;
    font-size: 1.05rem;
}

/* --- Services Grid (Special Layout) --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
    border-top: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    border-top: 3px solid var(--accent-color);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* --- Contact Form --- */
.contact-container {
    background: var(--white);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
}

.btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

/* --- Footer --- */
footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 4rem 10% 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        background-color: var(--primary-color);
        height: calc(100vh - 70px);
        width: 100%;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }
    
    .nav-links.nav-active {
        right: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-container {
        flex-direction: column;
    }
    
    .section {
        padding: 3rem 5%;
    }
}