/* ==================== VARIABLES Y RESET ==================== */
:root {
    --primary: #0d47a1;
    --primary-dark: #062d68;
    --primary-light: #1976d2;
    --accent: #ffb300;
    --accent-hover: #ff8f00;
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --bg-light: #f5f7fa;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== HEADER / NAVBAR ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    color: var(--accent);
    font-size: 1.6rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==================== HERO ==================== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.9), rgba(6, 45, 104, 0.95)),
                url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?w=1920') center/cover;
    display: flex;
    align-items: center;
    position: relative;
    color: var(--white);
    padding: 100px 0 60px;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    animation: fadeInUp 1s ease;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    font-size: 1.15rem;
    margin-bottom: 35px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== BOTONES ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 179, 0, 0.4);
}

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ==================== SECCIONES ==================== */
.section {
    padding: 100px 0;
}

.section-dark {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
}

.section-contact {
    background: var(--bg-light);
}

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

.section-subtitle {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary);
}

.section-title.light {
    color: var(--white);
}

/* ==================== QUIÉNES SOMOS ==================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 18px;
    color: var(--text-gray);
    font-size: 1.05rem;
}

.about-list {
    list-style: none;
    margin-top: 25px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-weight: 500;
}

.about-list i {
    color: var(--accent);
    font-size: 1.2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: var(--white);
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.stat-card:hover {
    transform: translateY(-8px);
    border-bottom-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.stat-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.stat-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* ==================== MISIÓN Y VISIÓN ==================== */
.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.mv-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition);
    text-align: center;
}

.mv-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--accent);
}

.mv-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-dark);
}

.mv-card h3 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: var(--accent);
}

.mv-card p {
    line-height: 1.8;
    opacity: 0.95;
}

/* ==================== SERVICIOS ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    border-top-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover i {
    color: var(--accent);
    transform: scale(1.1);
}

.service-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-gray);
}

/* ==================== CONTACTO ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--text-gray);
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.info-item i {
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-item h4 {
    color: var(--text-dark);
    margin-bottom: 3px;
    font-size: 1rem;
}

.info-item p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 30px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent);
    color: var(--text-dark);
    transform: translateY(-5px);
}

/* ==================== FORMULARIO ==================== */
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(13, 71, 161, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
}

.form-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.85);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer .logo {
    color: var(--white);
    margin-bottom: 15px;
}

.footer h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 12px;
}

.footer ul a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer ul li i {
    color: var(--accent);
    margin-right: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* ==================== WHATSAPP FLOTANTE ==================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    z-index: 999;
    text-decoration: none;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.15);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
    70% { box-shadow: 0 0 0 20px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 900px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 72px);
        background: var(--white);
        flex-direction: column;
        padding: 40px 30px;
        gap: 25px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: right 0.4s ease;
    }

    .nav-menu.active {
        right: 0;
    }

    .hero {
        min-height: 90vh;
    }

    .section {
        padding: 70px 0;
    }

    .contact-form {
        padding: 25px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
}