/* --- VARIABLES Y RESET --- */
:root {
    --primary-color: #1a3c34;
    /* Verde Bosque Profundo */
    --accent-color: #d4af37;
    /* Dorado Elegante */
    --text-color: #333333;
    --light-bg: #f9f9f9;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-color);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* --- HEADER & NAV --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 5%;
}

header.scrolled {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 5%;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--white);
    text-transform: uppercase;
}

header.scrolled .logo {
    color: var(--primary-color);
}

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

.nav-links a {
    color: var(--white);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    font-weight: 600;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition);
}

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

/* Menú hamburguesa */
.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--white);
}

header.scrolled .bar {
    background-color: var(--primary-color);
}

/* --- HERO SECTION --- */
.hero {
    height: 100vh;
    /* Aquí llamamos a la imagen local 'portada.jpg' */
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('images/portada.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 1rem;
}

.hero-content {
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.5s;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent-color);
    color: var(--white);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: var(--transition);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #bfa13f;
    transform: translateY(-2px);
}

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

.btn-inverse:hover {
    background-color: #f0f0f0;
}

/* --- GENERAL SECTIONS --- */
.section {
    padding: 5rem 10%;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 10px auto 0;
}

.subtitle {
    color: #777;
    margin-top: 10px;
}

.about-text {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: #555;
}

/* --- SERVICES GRID --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.card-image {
    height: 250px;
    overflow: hidden;
    background-color: #eee;
    /* Color de fondo si no hay imagen */
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .card-image img {
    transform: scale(1.1);
}

.card-content {
    padding: 2rem;
    text-align: center;
}

.card-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.card-content p {
    font-size: 0.95rem;
    color: #666;
}

.icon-box {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* --- CONTACT SECTION --- */
.contact-section {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
}

.contact-info {
    margin-top: 2rem;
    font-size: 1.1rem;
}

/* --- FOOTER --- */
footer {
    background-color: #112a24;
    color: #ccc;
    padding: 2rem 5%;
    text-align: center;
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- ANIMACIONES --- */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s forwards;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        gap: 0;
        flex-direction: column;
        background-color: var(--primary-color);
        width: 100%;
        height: 100vh;
        justify-content: center;
        align-items: center;
        transition: 0.3s;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.5rem;
        margin: 1.5rem 0;
    }
}