/* Variables globales */
:root {
    --primary-color: #196db7;
    --primary-hover: #115897;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --accent-color: #002545;
    --accent-hover: #011f39;
    --section-padding: 6rem;
    --container-width: 1200px;
    --section-spacing: 4rem;
    --component-spacing: 3rem;
    --text-normal: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
}

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

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

/* Header y Nav */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 80px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo { height: 40px;  width: auto;}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2.5rem;
    font-weight: 500;
    transition: color 0.3s;
}
.nav-links { display: flex; align-items: center; }
.nav-links a:hover { color: var(--primary-color); }

.btn-primary {
    background-color: var(--primary-color);
    color: white !important;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-weight: 500;
    border: none;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Resaltar botón de Iniciar Sesión en el header */
.header .nav-links .btn-primary { background-color: var(--accent-color); }
.header .nav-links .btn-primary:hover { background-color: var(--accent-hover); }

/* Hero Section */
.hero {
    background: #ffffff;
    padding: 8rem var(--component-spacing) var(--section-padding);
    color: var(--text-color);
    display: flex;
    align-items: center;
    margin-top: 80px;
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.hero-content { text-align: left; }
.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
}
.hero-content p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
    max-width: 90%;
}

.hero-visual img { border-radius: 12px; border: 1px solid #e5e7eb; object-fit: cover; }
.cta-group { display: flex; gap: 1rem; align-items: center; }
/* Asegurar imagen del hero responsiva */
.hero-visual img { width: 100%; height: auto; }

.search-box {
    background: white;
    padding: 0.5rem;
    border-radius: 8px;
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.search-box input {
    flex: 1;
    border: none;
    padding: 0.75rem;
    font-size: var(--text-normal);
    outline: none;
    color: var(--text-color);
}
.search-box input::placeholder { color: #999; }

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.btn-secondary:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}
/* Ajustes de botones dentro del header */
.header .nav-links .btn-secondary { background: transparent; box-shadow: none; border: 1px solid #e5e7eb; }
.header .nav-links .btn-secondary:hover { background: #f9fafb; border-color: #d1d5db; }

/* Features (Características) */
.features { padding: var(--section-padding) var(--component-spacing); background: var(--light-bg); }
.section-head { max-width: var(--container-width); margin: 0 auto 2rem auto; padding: 0 0.25rem; }
.section-title { font-size: 1.75rem; color: var(--accent-color); font-weight: 800; letter-spacing: -.02em; }
.features-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}
.feature-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: left;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.06); border-color: #d1d5db; }
.feature-card i { color: var(--primary-color); font-size: 1.75rem; margin-bottom: .75rem; }
.feature-card h3 { font-size: 1.125rem; margin-bottom: .25rem; color: var(--text-color); }
.feature-card p { color: #6b7280; line-height: 1.5; font-size: var(--text-normal); }

/* Features Section */
.steps { padding: var(--section-padding) var(--component-spacing); background: var(--light-bg); }
.steps-container { max-width: var(--container-width); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.step { background:#fff; border:1px solid #e5e7eb; border-radius:12px; padding:1.5rem; text-align:left; }
.step-number { width:32px; height:32px; border-radius:50%; background: var(--primary-color); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:600; margin-bottom:.75rem; }
.step h3 { font-size: 1.125rem; margin-bottom:.25rem; }
.step p { color:#6b7280; }

/* Benefits Section */
.benefits { padding: var(--section-padding) var(--component-spacing); background: #fff; }
.benefits-container { max-width: var(--container-width); margin: 0 auto; }
/* Nueva distribución: dos columnas, tarjetas compactas */
.benefit-row { display:grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.benefit-item { display: grid; grid-template-columns: 120px 1fr; gap: 1rem; align-items: start; background:#fff; border:1px solid #e5e7eb; border-radius:12px; padding:1.25rem; }
.benefit-content h2 { font-size: 1.25rem; margin-bottom: .5rem; color: var(--primary-color); font-weight: 700; }
.benefit-content ul { list-style: disc; padding-left: 1.25rem; }
.benefit-content ul li { margin-bottom:.4rem; color:#444; font-size: .95rem; line-height: 1.5; }
.benefit-image { display:flex; align-items:flex-start; justify-content:center; }
.benefit-image img { width: 100px; height: auto; border-radius:10px; border:1px solid #e5e7eb; object-fit: cover; }

/* CTA Section */
.cta { background:#0f2a43; color:#fff; padding: var(--section-padding) var(--component-spacing); text-align:center; }
.cta-container { max-width: 900px; margin: 0 auto; }
.cta h2 { font-size: 2rem; margin-bottom: .75rem; }
.cta p { opacity:.9; margin-bottom:1rem; }
.cta .btn-primary { background: #fff; color: var(--primary-color) !important; }
.product-shot { padding: var(--section-padding) var(--component-spacing); background:#fff; }
.product-shot-container { max-width: var(--container-width); margin:0 auto; }
.product-shot-container img { width:100%; height:auto; border-radius:12px; border:1px solid #e5e7eb; }

.consulta-tramite { padding: var(--section-padding) var(--component-spacing); background: var(--light-bg); }
.consulta-container { max-width: 720px; margin:0 auto; text-align:center; }
.consulta-form { display:grid; grid-template-columns: 1fr 1fr auto; gap: .75rem; margin-top:1rem; }
.consulta-form input { border:1px solid #e5e7eb; border-radius:8px; padding:.75rem; }
.consulta-result { margin-top:1rem; text-align:left; }
.alert-error { background:#fee2e2; color:#991b1b; border:1px solid #fecaca; padding:.75rem 1rem; border-radius:8px; }
.alert-info { background:#eff6ff; color:#1e3a8a; border:1px solid #bfdbfe; padding:.75rem 1rem; border-radius:8px; }
.card-result { border:1px solid #e5e7eb; border-radius:12px; padding:1rem; background:#fff; }

/* Footer */
.footer { background: var(--light-bg); padding: calc(var(--section-padding) * 0.75) var(--component-spacing); border-top: 1px solid rgba(0, 0, 0, 0.1); }
.footer-container { max-width: var(--container-width); margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 3rem; }
.footer-col h4 { color: var(--primary-color); margin-bottom: 1.25rem; font-size: var(--text-lg); font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col ul li a { color: #666; text-decoration: none; transition: all 0.3s ease; font-size: var(--text-normal); display: inline-flex; align-items: center; }
.footer-col ul li a:hover { color: var(--primary-color); transform: translateX(5px); }
.footer-col ul li i { margin-right: 0.75rem; font-size: var(--text-normal); }

/* Mobile Menu */
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-color); font-size: var(--text-2xl); cursor: pointer; padding: 0.5rem; z-index: 1001; }
.nav-links { transition: all 0.3s ease; }
.nav-links.active { display: flex !important; flex-direction: column; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(255,255,255,0.98); padding: 5rem 2rem; z-index: 1000; align-items: center; justify-content: center; gap: 2rem; box-shadow: 0 4px 24px rgba(0,0,0,.12) inset; }
.nav-links.active a { font-size: var(--text-xl); margin: 0; padding: 1.25rem; width: 100%; text-align: center; }
.nav-links.active .btn-primary { width: 100%; margin-top: 1rem; }
.nav-links.active .btn-secondary { width: 100%; }

/* Accesibilidad */
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid #94c6f0; outline-offset: 2px; }
.skip-link { position: absolute; left: -999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { position: static; width: auto; height: auto; padding: .5rem 1rem; background: #000; color: #fff; z-index: 2000; }

/* Responsive */
@media (max-width: 768px) {
    :root {
        --section-padding: 4rem;
        --component-spacing: 1.5rem;
    }
    .header { height: 70px; }
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero { padding: 6rem var(--component-spacing) var(--section-padding); text-align: center; margin-top: 70px; }
    .hero-container { grid-template-columns: 1fr; gap: 2rem; }
    .nav-container { padding: 0 var(--component-spacing); }
    .logo { height: 32px; }
    .hero-content { text-align: center; padding: 0 1rem; }
    .hero-content h1 { font-size: var(--text-3xl); }
    .hero-content p { font-size: var(--text-lg); margin-left: auto; margin-right: auto; }
    .cta-group { flex-direction: column; }
    .cta-group .btn-primary, .cta-group .btn-secondary { width: 100%; }
    .hero-search { padding: 1.5rem; }
    .hero-search h2 { font-size: var(--text-xl); }
    .hero-search p { font-size: var(--text-normal); }
    .search-box { flex-direction: column; padding: 0.75rem; }
    .search-box input { text-align: center; }
    .steps-container { grid-template-columns: 1fr; }
    .benefit-row { grid-template-columns: 1fr; }
    .benefit-item { grid-template-columns: 80px 1fr; }
    .benefit-image img { width: 72px; }
    .benefit-content h2 { font-size: var(--text-2xl); margin-bottom: 1.5rem; }
    .benefit-content ul { max-width: 100%; padding-left: 1rem; padding-right: 1rem; }
    .benefit-content ul li { font-size: var(--text-normal); text-align: left; margin-bottom: .6rem; }
    .benefit-image { padding: 1rem; order: -1; }
    .benefit-image img { max-width: 100%; }
    .cta { padding: var(--section-padding) var(--component-spacing); }
    .cta h2 { font-size: var(--text-2xl); margin-bottom: 1rem; }
    .cta p { font-size: var(--text-normal); margin-bottom: 1.5rem; }
    .footer { padding: var(--section-padding) var(--component-spacing); text-align: center; }
    .footer-container { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-col { margin-bottom: 1rem; }
    .footer-col ul li { margin-bottom: 0.5rem; }
    .footer-col ul li a { justify-content: center; }
    .consulta-form { grid-template-columns: 1fr; }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .hero-content h1 { font-size: var(--text-2xl); }
    .hero-content p { font-size: var(--text-normal); }
    .btn-primary, .btn-secondary { width: 100%; text-align: center; }
    .features-grid { grid-template-columns: 1fr; gap: 1rem; }
    .feature-card { padding: 1.25rem; }
    .feature-card i { font-size: var(--text-2xl); }
}

/* Preferencias del usuario */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}