:root {
    --primary: #0077b6;      /* Azul agua profesional */
    --primary-dark: #023e8a;
    --secondary: #f8f9fa;    /* Fondo claro */
    --text: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --dark: #1a1a1a;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header & Nav */
.site-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
}

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

.main-nav ul {
    display: none; /* Oculto en móvil por defecto */
    list-style: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    padding: 1rem 0;
}

.main-nav.active ul {
    display: flex;
}

.main-nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    display: block;
    transition: var(--transition);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
}

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

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #e0f7fa 0%, #ffffff 100%);
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

/* Sections General */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark);
}

.bg-light { background: var(--secondary); }
.bg-dark { background: var(--dark); }
.text-white { color: var(--white); }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.05);
}

.service-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Trust Section */
.trust-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

/* Contact Section */
.contact-content {
    text-align: center;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
    align-items: center;
}

.contact-item {
    color: var(--white);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 1rem 2rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--white);
    color: var(--dark);
}

/* Footer */
.site-footer {
    background: #111;
    color: #aaa;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    color: var(--white);
    font-size: 1.5rem;
}

.footer-brand span { color: var(--primary); }

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #333;
    font-size: 0.9rem;
}

/* =========================================
   MEDIA QUERIES (Desktop & Tablet)
   ========================================= */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }

    .main-nav ul {
        display: flex;
        flex-direction: row;
        position: static;
        width: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
    }

    .main-nav a {
        padding: 0.5rem 1rem;
    }

    .hero {
        padding: 6rem 0;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .trust-content {
        flex-direction: row;
        text-align: left;
        align-items: center;
        justify-content: space-between;
    }

    .trust-text, .trust-cta {
        flex: 1;
    }

    .contact-links {
        flex-direction: row;
        justify-content: center;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}