/* ==========================================================================
   RESET & VARIABLES
   ========================================================================== */
:root {
    --primary-teal: #00828A;
    --secondary-teal: #00A8B0;
    --soft-aqua: #A0C8D0;
    --dark-charcoal: #2A2A2A;
    --light-bg: #F8FAFA;
    --white: #FFFFFF;
    --gray-border: #E2E8F0;
    --text-muted: #64748B;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Montserrat', sans-serif;
    color: var(--dark-charcoal);
}

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

/* ==========================================================================
   PRELOADER (BLUEPRINT STYLE)
   ========================================================================== */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #0d1b2a;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.blueprint-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.loader-card {
    position: relative;
    z-index: 2;
    background: var(--white);
    padding: 40px 50px;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    text-align: center;
    max-width: 480px;
    width: 90%;
    border: 1px solid rgba(0, 130, 138, 0.2);
}

.welcome-text {
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: var(--primary-teal);
    font-weight: 600;
    margin: 20px 0;
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background-color: #EBF3F5;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--soft-aqua), var(--primary-teal));
    transition: width 0.1s linear;
}

.progress-number {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}

.enter-btn {
    display: none;
    margin-top: 20px;
    width: 100%;
    padding: 14px;
    background-color: var(--primary-teal);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.enter-btn:hover {
    background-color: var(--secondary-teal);
    transform: translateY(-2px);
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-border);
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-charcoal);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

.nav-menu .btn-contact {
    background-color: var(--primary-teal);
    color: var(--white);
    padding: 8px 18px;
    border-radius: 4px;
}

.nav-menu .btn-contact:hover {
    background-color: var(--secondary-teal);
    color: var(--white);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-charcoal);
    cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    padding-top: 140px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, rgba(0, 130, 138, 0.05) 0%, rgba(255,255,255,1) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-charcoal);
}

.hero-content .highlight {
    color: var(--primary-teal);
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    background-color: var(--primary-teal);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
}

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

.btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    border: 2px solid var(--primary-teal);
    color: var(--primary-teal);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
}

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

.hero-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

/* ==========================================================================
   SECTIONS GENERAL
   ========================================================================== */
.section-padding {
    padding: 90px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    color: var(--dark-charcoal);
    margin-bottom: 10px;
}

.section-header .line {
    width: 60px;
    height: 3px;
    background-color: var(--primary-teal);
    margin: 0 auto;
}

/* ==========================================================================
   NOSOTROS
   ========================================================================== */
.nosotros-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.card-box {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-teal);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);

}

.card-box h3 {
    margin-bottom: 15px;
    color: var(--primary-teal);
}

/* ==========================================================================
   GRID CARDS (SERVICIOS, AMBIENTES, ETC)
   ========================================================================== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

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

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.card-img img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
}

.card-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-charcoal);
}

.card-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   CONTACTO
   ========================================================================== */
.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-top: 25px;
}

.info-item i {
    font-size: 1.2rem;
    color: var(--primary-teal);
    margin-top: 5px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-border);
    border-radius: 4px;
    font-family: inherit;
}

.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #D1E7DD;
    color: #0F5132;
}

.alert-error {
    background-color: #F8D7DA;
    color: #842029;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
    background-color: var(--dark-charcoal);
    color: var(--white);
    padding: 60px 20px 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    margin-bottom: 20px;
    color: var(--soft-aqua);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

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

.footer-col a:hover {
    color: var(--soft-aqua);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    color: #888;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 15px;
    }

    .mobile-toggle {
        display: block;
    }

    .hero-container,
    .nosotros-grid,
    .contacto-grid,
    .footer-container {
        grid-template-columns: 1fr;
    }
}