/* VARIABLES DE DISEÑO E INSTITUCIONALES */
:root {
    --verde-nat: #4CAF50;
    --turquesa: #26C6DA;
    --amarillo-vd: #C0D860;
    --blanco: #FFFFFF;
    --gris-suave: #F5F7F8;
    --oscuro: #2C3E50;
}

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

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

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
}

.text-center { text-align: center; }
.text-white { color: var(--blanco); }
.bg-light { background-color: var(--gris-suave); }
.section-padding { padding: 80px 20px; }
.italic { font-style: italic; }

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

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    background: rgba(255, 255, 255, 0.95);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--verde-nat);
}
.logo span { color: var(--turquesa); }

.nav-menu a {
    text-decoration: none;
    color: var(--oscuro);
    margin-left: 25px;
    font-weight: 600;
    font-size: 14px;
    transition: color 0.3s;
}

.nav-menu a:hover { color: var(--verde-nat); }

.btn-nav {
    background-color: var(--verde-nat);
    color: white !important;
    padding: 10px 20px;
    border-radius: 25px;
}

/* HERO */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1544717305-2782549b5136?auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.4), rgba(38, 198, 218, 0.5));
}

.hero-content {
    position: relative;
    color: white;
    max-width: 800px;
    z-index: 2;
}

.hero-content h1 {
    font-size: 54px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 35px;
}

.btn-primary, .btn-secondary {
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    margin: 10px;
    display: inline-block;
    transition: transform 0.3s;
}

.btn-primary { background-color: var(--blanco); color: var(--verde-nat); }
.btn-secondary { background-color: transparent; border: 2px solid var(--blanco); color: var(--blanco); }
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-3px); }

/* GRID & CARDS */
.section-title { font-size: 36px; margin-bottom: 15px; color: var(--verde-nat); }
.section-subtitle { font-size: 16px; margin-bottom: 50px; color: #7f8c8d; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(450px, 1fr)); gap: 30px; }

.card {
    background: var(--blanco);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border-bottom: 4px solid var(--amarillo-vd);
}

/* SPLIT SECTION */
.layout-split { display: flex; align-items: center; gap: 50px; flex-wrap: wrap; }
.split-text { flex: 1; min-width: 300px; }
.split-image-placeholder { 
    flex: 1; min-width: 300px; height: 400px; 
    background: #e0e0e0; border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    background: url('https://images.unsplash.com/photo-1503676260728-1c00da094a0b?auto=format&fit=crop&w=800&q=80') center/cover;
}
.image-inner { background: rgba(255,255,255,0.9); padding: 15px 25px; border-radius: 8px; font-weight: 600; }

.tag { background-color: var(--turquesa); color: white; padding: 5px 15px; border-radius: 15px; font-size: 12px; display: inline-block; margin-bottom: 15px; }

.emotional-list { list-style: none; margin-top: 20px; }
.emotional-list li { margin-bottom: 15px; position: relative; padding-left: 25px; }
.emotional-list li::before { content: "✓"; position: absolute; left: 0; color: var(--verde-nat); font-weight: bold; }

/* ADMISIONES & STEPS */
.bg-gradient { background: linear-gradient(135deg, var(--verde-nat), var(--turquesa)); }
.steps-container { display: flex; justify-content: space-around; margin: 40px 0; flex-wrap: wrap; }
.step { text-align: center; margin: 20px; }
.step span { width: 50px; height: 50px; background: white; color: var(--verde-nat); display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: 700; font-size: 20px; margin-bottom: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }

.btn-white { background: white; color: var(--verde-nat); padding: 15px 40px; border-radius: 30px; text-decoration: none; font-weight: 700; display: inline-block; margin-top: 20px; }

/* FORMULARIO */
.form-container { max-width: 600px !important; background: var(--gris-suave); padding: 40px; border-radius: 15px; }
#contact-form input, #contact-form select, #contact-form textarea { width: 100%; padding: 12px; margin-bottom: 15px; border: 1px solid #ddd; border-radius: 8px; font-family: inherit; }
.btn-submit { background-color: var(--turquesa); color: white; border: none; padding: 15px; font-weight: 600; border-radius: 8px; cursor: pointer; width: 100%; font-size: 16px; }

footer { background: var(--oscuro); color: white; text-align: center; padding: 30px; font-size: 14px; }

/* RESPONSIVE */
@media (max-width: 768px) {
    .navbar { padding: 15px 20px; }
    .nav-menu { display: none; } /* En producción se activa menú hamburguesa */
    .hero-content h1 { font-size: 32px; }
}