:root {
    --verde: #2A8C3F;
    --negro: #111111;
    --gris-fondo: #f8fafc;
    --texto: #4A5568;
    --blanco: #ffffff;
    --whatsapp: #25D366;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; color: var(--texto); background-color: var(--blanco); overflow-x: hidden; font-weight: 300; line-height: 1.6; }
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; color: var(--negro); font-weight: 700; }

/* ENCABEZADO */
header { 
    position: absolute; top: 0; left: 0; width: 100%; z-index: 1000; 
    padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; 
    background-color: var(--blanco); box-shadow: 0 2px 15px rgba(0,0,0,0.05); 
}
.brand { display: flex; align-items: center; gap: 15px; text-decoration: none;}
.nav-links { display: flex; gap: 30px; }
.nav-links a { 
    text-decoration: none; color: var(--texto); font-weight: 700; 
    font-family: 'Montserrat', sans-serif; font-size: 0.85rem; 
    text-transform: uppercase; transition: all 0.3s ease; letter-spacing: 1px;
}
.nav-links a:hover, .nav-links a.active { color: var(--verde); }

/* HERO (PORTADA CON VIDEO DE FONDO) */
.hero { 
    position: relative; min-height: 100vh; color: var(--blanco);
    display: flex; align-items: center; padding: 180px 5% 80px 5%;
    overflow: hidden; background-color: var(--negro);
}
.video-bg {
    position: absolute; top: 50%; left: 50%;
    min-width: 100%; min-height: 100%; width: auto; height: auto;
    transform: translateX(-50%) translateY(-50%); z-index: 0; object-fit: cover;
}
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(17,17,17,0.85) 0%, rgba(42,140,63,0.4) 100%);
    z-index: 1; clip-path: polygon(0 0, 100% 0, 100% 92%, 0% 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 850px; }
.hero h1 { font-size: 4rem; font-weight: 900; line-height: 1.1; margin-bottom: 25px; text-transform: uppercase; letter-spacing: -1.5px; color: var(--blanco); }
.hero h1 span { color: var(--verde); text-shadow: 0 0 10px rgba(0,0,0,0.8); }
.hero p { font-size: 1.25rem; margin-bottom: 45px; font-weight: 400; color: #f1f5f9; text-shadow: 0 2px 4px rgba(0,0,0,0.8); }

.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background-color: var(--verde); color: var(--blanco); padding: 22px 45px; 
    font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.95rem; 
    text-transform: uppercase; text-decoration: none; letter-spacing: 1.5px;
    border-radius: 4px; transition: all 0.3s ease; box-shadow: 0 10px 30px rgba(42, 140, 63, 0.2);
}
.btn-primary i { margin-right: 15px; font-size: 1.2rem; }
.btn-primary:hover { background-color: var(--blanco); color: var(--negro); transform: translateY(-4px); box-shadow: 0 15px 40px rgba(0,0,0,0.2); }

/* ESTADÍSTICAS */
.stats-bar { 
    background-color: var(--blanco); display: flex; flex-wrap: wrap; 
    margin-top: -70px; position: relative; z-index: 5; max-width: 1200px; margin-left: auto; margin-right: auto;
    border-radius: 12px; box-shadow: 0 20px 50px rgba(0,0,0,0.08); overflow: hidden; border: 1px solid #edf2f7;
}
.stat-box { flex: 1; min-width: 250px; padding: 50px 20px; text-align: center; border-right: 1px solid #edf2f7; }
.stat-box:last-child { border-right: none; }
.stat-number { display: block; font-family: 'Montserrat', sans-serif; font-size: 3.5rem; font-weight: 900; color: var(--verde); margin-bottom: 10px; }
.stat-text { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; color: #718096; font-weight: 700; }

/* SECCIONES INTERNAS */
.page-header { padding: 180px 5% 80px 5%; background-color: var(--gris-fondo); text-align: center; border-bottom: 1px solid #edf2f7; }
.page-header h1 { font-size: 3.5rem; text-transform: uppercase; color: var(--negro); margin-bottom: 15px; }
.page-header p { font-size: 1.2rem; color: #64748b; max-width: 700px; margin: 0 auto; }

.about-section { padding: 100px 5%; display: flex; gap: 80px; align-items: center; flex-wrap: wrap; }
.about-text { flex: 1; min-width: 350px; }
.about-text h2 { font-size: 2.8rem; margin-bottom: 30px; text-transform: uppercase; }
.about-text h2::after { content: ''; display: block; width: 70px; height: 5px; background-color: var(--verde); margin-top: 20px; }
.about-text p { margin-bottom: 25px; font-size: 1.15rem; }
.about-image { flex: 1; min-width: 350px; position: relative; }
.about-image img { width: 100%; height: auto; display: block; position: relative; z-index: 2; clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%); box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

.services { padding: 100px 5%; background-color: var(--blanco); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; max-width: 1240px; margin: 0 auto; }
.service-card { background: var(--gris-fondo); padding: 50px 30px; border-radius: 8px; transition: all 0.4s ease; border: 1px solid #edf2f7; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.service-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-color: var(--verde); }
.service-icon { font-size: 2.5rem; color: var(--verde); margin-bottom: 20px; }
.service-card h3 { font-size: 1.2rem; margin-bottom: 15px; text-transform: uppercase; letter-spacing: 0.5px; }

.method-section { padding: 100px 5%; background-color: var(--gris-fondo); }
.method-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; max-width: 1240px; margin: 0 auto; text-align: center; }
.method-step { position: relative; padding: 20px; }
.step-number { font-size: 4rem; font-family: 'Montserrat', sans-serif; font-weight: 900; color: var(--blanco); position: absolute; top: -20px; left: 50%; transform: translateX(-50%); z-index: 0; }
.method-step h4 { position: relative; z-index: 1; font-size: 1.1rem; margin: 20px 0 10px 0; color: var(--verde); text-transform: uppercase; }
.method-step p { position: relative; z-index: 1; font-size: 0.95rem; }

.contact-final { padding: 100px 5%; background-color: var(--blanco); text-align: center; }
.contact-wrapper { max-width: 800px; margin: 0 auto; padding: 60px 40px; background-color: var(--gris-fondo); border-radius: 12px; border: 1px solid #edf2f7; box-shadow: 0 10px 40px rgba(0,0,0,0.03); }
.contact-final h2 { font-size: 2.2rem; text-transform: uppercase; margin-bottom: 15px; letter-spacing: -0.5px; }
.contact-final p { font-size: 1.1rem; margin-bottom: 40px; color: #64748b; max-width: 600px; margin-left: auto; margin-right: auto; }
.contact-email-link { display: inline-flex; align-items: center; justify-content: center; font-size: 1.15rem; font-weight: 500; color: var(--negro); text-decoration: none; padding: 18px 45px; border-radius: 50px; background-color: var(--blanco); border: 1px solid #e2e8f0; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(0,0,0,0.02); font-family: 'Montserrat', sans-serif; }
.contact-email-link i { color: var(--verde); margin-right: 15px; font-size: 1.3rem; }
.contact-email-link:hover { border-color: var(--verde); color: var(--verde); box-shadow: 0 10px 25px rgba(42, 140, 63, 0.1); transform: translateY(-3px); }

footer { background-color: var(--negro); color: rgba(255,255,255,0.7); text-align: center; padding: 40px 20px; font-size: 0.9rem; margin-top: auto; }
footer strong { color: var(--blanco); font-weight: 500; }
.btn-whatsapp-flotante { position: fixed; width: 60px; height: 60px; bottom: 40px; right: 40px; background-color: var(--whatsapp); color: #FFF; border-radius: 50px; display: flex; align-items: center; justify-content: center; font-size: 30px; box-shadow: 2px 2px 15px rgba(0,0,0,0.2); z-index: 1000; text-decoration: none; transition: all 0.3s ease; }
.btn-whatsapp-flotante:hover { transform: scale(1.1); background-color: #128C7E; box-shadow: 2px 2px 20px rgba(37, 211, 102, 0.4); }

@media (max-width: 1024px) {
    header { flex-direction: column; gap: 20px; padding: 20px 5%; }
    .nav-links { flex-wrap: wrap; justify-content: center; gap: 15px; }
    .hero-content h1 { font-size: 2.5rem; }
    .hero { padding: 220px 5% 100px 5%; }
    .stats-bar { grid-template-columns: 1fr; margin-top: -30px; }
    .stat-box { border-bottom: 1px solid #edf2f7; border-right: none; }
    .about-section { flex-direction: column; }
    .btn-whatsapp-flotante { width: 50px; height: 50px; bottom: 20px; right: 20px; font-size: 25px; }
}
/* =========================================
   PORTAL DE CERTIFICADOS (Buscador)
   ========================================= */
.portal-section { 
    padding: 100px 5%; 
    background-color: var(--blanco); 
    text-align: center; 
    min-height: 60vh; /* Para que la página no quede corta si hay poco contenido */
    display: flex;
    align-items: center;
    justify-content: center;
}

.portal-wrapper { 
    width: 100%;
    max-width: 650px; 
    padding: 60px 50px; 
    background-color: var(--blanco); 
    border-radius: 12px; 
    border: 1px solid #edf2f7; 
    box-shadow: 0 20px 50px rgba(0,0,0,0.06); 
    position: relative;
    overflow: hidden;
}

/* Detalle verde en el borde superior de la tarjeta */
.portal-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background-color: var(--verde);
}

.portal-icon { 
    font-size: 3.5rem; 
    color: var(--verde); 
    margin-bottom: 25px; 
}

.portal-wrapper h2 { 
    font-size: 2.2rem; 
    text-transform: uppercase; 
    margin-bottom: 15px; 
    letter-spacing: -0.5px;
}

.portal-wrapper p { 
    font-size: 1.1rem; 
    margin-bottom: 35px; 
    color: #64748b; 
}

.portal-form { 
    display: flex; 
    flex-direction: column; 
    gap: 20px; 
}

.portal-form input { 
    padding: 20px 25px; 
    font-size: 1.1rem; 
    border: 2px solid #edf2f7; 
    background-color: var(--gris-fondo);
    border-radius: 6px; 
    font-family: 'Roboto', sans-serif; 
    transition: all 0.3s ease; 
    outline: none; 
    color: var(--negro);
    text-align: center;
}

.portal-form input:focus { 
    border-color: var(--verde); 
    background-color: var(--blanco);
    box-shadow: 0 0 0 4px rgba(42, 140, 63, 0.1); 
}

.portal-form .btn-primary { 
    width: 100%; 
    cursor: pointer; 
    border: none; 
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .portal-wrapper { padding: 40px 25px; }
    .portal-wrapper h2 { font-size: 1.8rem; }
}