:root {
    --bg-light: #f4f7f6;
    --bg-white: #ffffff;
    --primary-text: #2d3436;
    --accent-orange: #ff6600;
    --secondary-gray: #dfe6e9;
}

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    margin: 0;
    background-color: var(--bg-light);
    color: var(--primary-text);
    scroll-behavior: smooth;
    font-size: 18px; 
}

header {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 90%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-bottom: 3px solid var(--accent-orange);
}

.logo { font-size: 1.8rem; font-weight: 900; color: var(--accent-orange); letter-spacing: 2px; }

nav a {
    color: var(--primary-text);
    text-decoration: none;
    margin-left: 20px;
    font-size: 1rem;
    text-transform: uppercase;
    font-weight: 700;
    transition: 0.3s;
}

nav a:hover { color: var(--accent-orange); }

.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(rgba(255,255,255,0.85), rgba(255,255,255,0.85)), 
                url('https://images.unsplash.com/photo-1497366216548-37526070297c?q=80');
    background-size: cover;
    padding: 0 10%;
    margin-top: 60px;
}

.hero h1 { font-size: 3.8rem; color: #1a1a1a; margin-bottom: 15px; line-height: 1.1; }
.hero h1 span { color: var(--accent-orange); }
.hero p { font-size: 1.4rem; color: #444; max-width: 800px; margin-bottom: 30px; }

.btn {
    padding: 18px 40px;
    background: var(--accent-orange);
    color: white;
    text-decoration: none;
    font-weight: 800;
    border-radius: 5px;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(255,102,0,0.3);
}

.btn:hover { background: #e65c00; transform: translateY(-3px); }

section { padding: 100px 10%; }

h2 { font-size: 2.5rem; color: #1a1a1a; border-bottom: 5px solid var(--accent-orange); display: inline-block; margin-bottom: 50px; }

.card-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.card {
    background: var(--bg-white);
    padding: 45px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
    border-top: 6px solid var(--accent-orange);
}

.card h3 { color: var(--accent-orange); font-size: 1.8rem; margin-top: 0; }
.card p, .card li { font-size: 1.1rem; line-height: 1.6; }
.card ul { list-style: none; padding: 0; color: #444; }
.card li { margin-bottom: 15px; padding-left: 25px; position: relative; }
.card li::before { content: '→'; position: absolute; left: 0; color: var(--accent-orange); font-weight: bold; }

.mv-section { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 40px; }
.mv-item { background: #fff; padding: 35px; border: 1px solid var(--secondary-gray); border-radius: 10px; }

footer { background: #1a1a1a; color: white; padding: 60px 10%; text-align: center; }

.whatsapp { 
    position: fixed; 
    bottom: 30px; 
    right: 30px; 
    background: #25d366; 
    color: white; 
    padding: 16px 28px; 
    border-radius: 50px; 
    font-weight: bold; 
    text-decoration: none; 
    box-shadow: 0 8px 20px rgba(0,0,0,0.2); 
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.3s;
}

.whatsapp:hover { transform: scale(1.1); background: #20ba5a; }

/* Responsive para celulares */
@media (max-width: 768px) {
    .card-container, .mv-section { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.5rem; }
    header { padding: 1rem 2%; }
    .logo { font-size: 1.4rem; }
}