/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --primary-color: #0088cc; /* Azul Celeste Intenso */
    --secondary-color: #003366; /* Azul Oscuro Corporativo */
    --accent-color: #4facfe; /* Celeste Brillante */
    --light-bg: #f0f8ff; /* Blanco Alice (tono muy suave de azul) */
    --dark-text: #2c3e50;
    --light-text: #576574;
    --success-color: #27ae60;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

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

/* Header & Navigation */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 50px;
}

.logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: var(--white);
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.4);
}

/* Hero Section */
.hero {
    margin-top: 60px;
    background: url('./media/fondotitulocambiobateira.jpg') center/cover no-repeat;
    background-attachment: fixed;
    color: var(--white);
    padding: 10px 0 40px 0; /* Reducido drásticamente el padding superior a 10px */
    position: relative;
    overflow: hidden;
    will-change: auto;
    min-height: 85vh; /* Altura un poco menor para asegurar visibilidad en pantallas chicas */
    display: flex;
    align-items: flex-start; /* Alinear todo al inicio (arriba) */
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.85) 0%, rgba(52, 73, 94, 0.85) 100%);
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: flex-start;
    position: relative;
    z-index: 2;
    padding-top: 40px; /* Ajuste fino */
}

.hero-text {
    margin-top: -10px; /* Truco para subir visualmente el texto un poco más */
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem; /* Menos espacio debajo del título */
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5); /* Sombra para mejor lectura */
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 1.5rem; /* Menos espacio debajo del subtítulo */
    color: var(--accent-color);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    font-weight: 500;
}

.hero-benefits {
    list-style: none;
    margin-top: 1rem; /* Menos espacio antes de la lista */
}

.hero-benefits li {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-benefits i {
    color: var(--success-color);
    font-size: 1.3rem;
}

/* Form Card */
.hero-form-container {
    display: flex;
    justify-content: center;
}

.form-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    color: var(--dark-text);
    width: 100%;
    max-width: 500px;
}

.form-card h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.form-subtitle {
    color: var(--light-text);
    margin-bottom: 30px;
    font-size: 0.95rem;
}

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

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

.contact-form label i {
    color: var(--primary-color);
    margin-right: 5px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 136, 204, 0.2);
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background: var(--light-bg);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--light-text);
    margin-bottom: 50px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.benefit-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 2rem;
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.benefit-card p {
    color: var(--light-text);
    line-height: 1.8;
}

/* Brands Section */
.brands {
    padding: 80px 0;
    background: var(--white);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.brand-card {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.brand-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.brand-logo {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: white;
    border-radius: 10px;
    padding: 10px;
}

.brand-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.brand-card h4 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.brand-card p {
    color: var(--light-text);
}

/* Coverage Section */
.coverage {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #00509e 100%);
    color: var(--white);
}

.coverage-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    text-align: center;
}

.coverage-icon {
    font-size: 4rem;
}

.coverage-text h3 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.coverage-text p {
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.footer-section p {
    margin-bottom: 10px;
    color: var(--light-bg);
}

.footer-section i {
    margin-right: 10px;
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.2);
    background: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-bg);
}

/* Success Message */
.success-message {
    background: var(--success-color);
    color: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}

.success-message.show {
    display: block;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero {
        padding-top: 20px;
        align-items: flex-start;
        min-height: auto;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-top: 10px;
    }
    
    .hero-text {
        text-align: center;
        margin-top: 0;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .coverage-content {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .form-card {
        padding: 25px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .brands-grid {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 25px;
        bottom: 20px;
        right: 20px;
    }
}