/* Variables de Diseño */
:root {
    --primary: #0f172a;       /* Slate 900 (Fondo e Importancia) */
    --primary-light: #1e293b; /* Slate 800 */
    --accent: #1e40af;        /* Blue 800 (Institucional) */
    --accent-glow: #3b82f6;   /* Blue 500 */
    --gold: #d97706;          /* Amber 600 (Detalles elegantes) */
    --gold-light: #fef3c7;    /* Amber 100 */
    --bg-main: #f8fafc;       /* Slate 50 */
    --bg-card: #ffffff;
    --text-main: #334155;     /* Slate 700 */
    --text-title: #0f172a;    /* Slate 900 */
    --text-muted: #64748b;    /* Slate 500 */
    --border-color: #e2e8f0;  /* Slate 200 */
    
    --font-headings: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.04), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
    --shadow-premium: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Estilos generales */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    margin: 0;
    padding: 0;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--text-title);
    font-weight: 700;
    margin-top: 0;
}

/* Cabecera / Hero */
header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.header-logo-img {
    max-width: 320px;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-premium);
    transition: var(--transition);
    border: 3px solid rgba(255, 255, 255, 0.15);
    background: white;
    padding: 10px;
}

.header-logo-img:hover {
    transform: translateY(-5px);
    border-color: var(--accent-glow);
}

header p {
    font-size: 1.25rem;
    color: #cbd5e1;
    max-width: 700px;
    margin: 20px auto 0;
    font-weight: 400;
    font-family: var(--font-headings);
}

/* Barra de navegación */
nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

nav a {
    color: #94a3b8;
    padding: 18px 20px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: var(--accent-glow);
    transition: var(--transition);
    transform: translateX(-50%);
}

nav a:hover {
    color: white;
}

nav a:hover::after {
    width: 80%;
}

/* Contenedor principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Secciones */
section {
    padding: 40px;
    margin-bottom: 35px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

section:hover {
    box-shadow: var(--shadow-premium);
}

section h2 {
    font-size: 1.85rem;
    border-bottom: 3px solid var(--accent);
    padding-bottom: 12px;
    margin-bottom: 25px;
    display: inline-block;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--gold);
}

/* Tarjetas de Clientes */
.client-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.client-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.client-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent);
    transition: var(--transition);
}

.client-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card);
    box-shadow: var(--shadow-lg);
    border-color: rgba(59, 130, 246, 0.3);
}

.client-card:hover::before {
    background: var(--accent-glow);
}

.client-card img {
    max-width: 100%;
    height: 80px;
    object-fit: contain;
    margin-bottom: 15px;
    filter: grayscale(10%) contrast(95%);
    transition: var(--transition);
}

.client-card:hover img {
    filter: grayscale(0%) contrast(100%) scale(1.05);
}

.logo-year {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold);
    background: var(--gold-light);
    padding: 4px 12px;
    border-radius: 50px;
    display: inline-block;
}

/* Lista de Alcance y Propósito como Grid de Tarjetas */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.feature-card {
    background: var(--bg-main);
    padding: 24px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.feature-card:hover {
    transform: translateX(5px);
    background: var(--bg-card);
    border-left-color: var(--gold);
    box-shadow: var(--shadow-md);
}

.feature-card i {
    color: var(--accent-glow);
    font-size: 1.4rem;
    margin-top: 3px;
    transition: var(--transition);
}

.feature-card:hover i {
    color: var(--gold);
    transform: scale(1.1);
}

.feature-content h4 {
    margin: 0 0 6px 0;
    font-family: var(--font-headings);
    font-size: 1.05rem;
    color: var(--text-title);
}

.feature-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Sección de Ley / Cumplimiento */
.compliance-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 15px;
}

.compliance-item {
    background: #f1f5f9;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--text-title);
    border: 1px solid var(--border-color);
}

.compliance-item i {
    color: #10b981; /* Verde esmeralda para cumplimiento */
    font-size: 1.2rem;
}

/* Diseño Editorial para el Dato Curioso */
.curiosity-card {
    background: radial-gradient(circle at 0% 0%, #fafaf9 0%, #f5f5f4 100%);
    border-left: 6px solid var(--gold);
    border-right: 1px solid #e7e5e4;
    border-top: 1px solid #e7e5e4;
    border-bottom: 1px solid #e7e5e4;
    padding: 40px;
    border-radius: var(--radius-md);
}

.curiosity-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.curiosity-header i {
    font-size: 2rem;
    color: var(--gold);
}

.curiosity-header h3 {
    margin: 0;
    font-family: var(--font-headings);
    font-size: 1.5rem;
}

.curiosity-text {
    font-style: italic;
    font-size: 1.05rem;
    color: #44403c;
    border-bottom: 1px dashed #d6d3d1;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

/* Información de Contacto */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.contact-item {
    background: var(--bg-main);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--bg-card);
    border-color: var(--accent-glow);
    transform: translateY(-3px);
}

.contact-item i {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.contact-item h4 {
    margin: 0 0 8px 0;
    font-size: 1rem;
}

.contact-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    word-break: break-all;
}

/* Botones y CTAs */
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-glow);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transition: var(--transition);
}

.btn-cta:hover {
    background: var(--accent);
    box-shadow: 0 6px 16px rgba(30, 64, 175, 0.4);
    transform: translateY(-2px);
}

/* Pie de página */
footer {
    background: var(--primary);
    color: #94a3b8;
    text-align: center;
    padding: 40px 20px;
    border-top: 4px solid var(--gold);
}

footer p {
    margin: 0 0 15px 0;
    font-size: 0.95rem;
}

/* Contador de Visitas */
.contador-visitas-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--primary-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: #e2e8f0;
}

.contador-visitas-badge span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.contador-visitas-badge .dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #10b981;
}

/* Responsividad general */
@media (max-width: 768px) {
    header {
        padding: 50px 20px;
    }
    .header-logo-img {
        max-width: 240px;
    }
    nav a {
        padding: 12px 14px;
        font-size: 0.85rem;
    }
    section {
        padding: 24px;
    }
    .curiosity-card {
        padding: 24px;
    }
}