:root {
    --primary: #15803d; /* Verde Cootraembuga */
    --primary-light: #22c55e;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --radius: 12px;
    --transition: 0.3s ease-in-out;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    color: #334155;
    background-color: var(--light);
    line-height: 1.6;
}

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section { padding: 5rem 0; }
.bg-light { background-color: #ffffff; }
.bg-dark { background-color: var(--dark); color: var(--light); }
.text-center { text-center; }
.text-light { color: #f8fafc; }

/* Tipografía */
h1, h2, h3 { color: var(--dark); margin-bottom: 1rem; font-weight: 700; }
.bg-dark h1, .bg-dark h2, .bg-dark h3 { color: var(--light); }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 { font-size: 2.5rem; color: var(--primary); }

/* Botones y Enlaces */
.btn-primary, .btn-outline {
    display: inline-block; padding: 0.8rem 1.5rem; border-radius: 8px; font-weight: 600; cursor: pointer; transition: var(--transition); text-decoration: none; border: none;
}
.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover { background-color: var(--primary-light); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(34, 197, 94, 0.2); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background-color: var(--primary); color: white; }

/* Navegación */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: var(--glass-bg); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(0,0,0,0.05);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; }
.logo a { font-size: 1.5rem; font-weight: 900; color: var(--primary); text-decoration: none; letter-spacing: 1px; }
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a { text-decoration: none; color: var(--dark); font-weight: 500; transition: var(--transition); }
.nav-links a:hover { color: var(--primary); }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.menu-toggle span { display: block; width: 25px; height: 3px; background-color: var(--dark); border-radius: 2px; }

/* Grillas */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }

/* Tarjetas (Cards) */
.card {
    background: #ffffff; padding: 2rem; border-radius: var(--radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02); transition: var(--transition);
}
.card.border-accent { border-top: 4px solid var(--primary); }
.card.glass { background: rgba(255,255,255,0.7); backdrop-filter: blur(15px); border: 1px solid rgba(255,255,255,0.5); }
.card:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.08); }
.service-card .icon { font-size: 3rem; margin-bottom: 1rem; }

/* Hero Section */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding-top: 80px;
}
.hero h1 { font-size: 3.5rem; color: var(--dark); max-width: 800px; margin: 0 auto 1rem; line-height: 1.2; }
.hero p { font-size: 1.2rem; color: var(--gray); margin-bottom: 2rem; }

/* Convenios & Filtros */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; margin-bottom: 2rem; }
.filter-btn { padding: 0.5rem 1rem; border: 1px solid #e2e8f0; background: white; border-radius: 20px; cursor: pointer; transition: var(--transition); }
.filter-btn.active, .filter-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }

.convenio-card {
    background: white; padding: 1.5rem; text-align: center; border-radius: var(--radius); cursor: pointer;
    font-weight: 600; color: var(--dark); border: 1px solid #e2e8f0; transition: var(--transition);
}
.convenio-card:hover { background: var(--primary-light); color: white; transform: scale(1.03); }
.convenio-item.hidden { display: none; }

/* Formularios y Contacto */
.contact-info ul { list-style: none; margin-bottom: 1.5rem; }
.contact-info li { margin-bottom: 0.8rem; font-size: 1.1rem; }
.social-links a { display: inline-block; margin-right: 1rem; color: var(--primary-light); text-decoration: none; font-weight: bold; }
.contact-form input, .contact-form textarea {
    width: 100%; padding: 1rem; margin-bottom: 1rem; border: 1px solid #334155; border-radius: 8px; background: #1e293b; color: white; font-family: inherit;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--primary-light); }

/* Footer */
footer { background: #020617; color: #94a3b8; padding: 2rem 0; font-size: 0.9rem; }

/* Modal Dinámico */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(5px);
    display: flex; align-items: center; justify-content: center; z-index: 2000; opacity: 0; visibility: hidden; transition: var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-content {
    background: white; padding: 2.5rem; border-radius: var(--radius); width: 90%; max-width: 500px;
    position: relative; transform: translateY(-20px); transition: var(--transition);
}
.modal-overlay.active .modal-content { transform: translateY(0); }
.modal-close {
    position: absolute; top: 1rem; right: 1.5rem; font-size: 2rem; background: none; border: none; cursor: pointer; color: var(--gray);
}
.modal-close:hover { color: var(--dark); }

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav-links {
        position: absolute; top: 100%; left: 0; width: 100%; background: white; flex-direction: column; gap: 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.05); display: none;
    }
    .nav-links.active { display: flex; }
    .nav-links a { padding: 1rem; border-bottom: 1px solid #f1f5f9; text-align: center; }
    .hero h1 { font-size: 2.5rem; }
}

/* =========================================
   NUEVAS REGLAS DE UX Y ESTRUCTURA
========================================= */

/* Utilidad para márgenes */
.mt-3 { margin-top: 3rem; }

/* Grilla estricta para garantizar 2x2 (Estados Financieros y Nosotros) */
.grid-2-strict {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

/* --- UX Mejorada para Nosotros --- */
.about-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.about-intro h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.about-intro p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 1.2rem;
}

.about-intro strong {
    color: var(--dark);
}

.highlight-text {
    font-size: 1.2rem !important;
    color: var(--primary) !important;
    margin-top: 2rem;
}

.icon-large {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

/* --- UX Mejorada para Estados Financieros (Alineación exacta a tu imagen) --- */
.document-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Empuja el botón hacia abajo */
    align-items: flex-start; /* Alinea todo a la izquierda */
    text-align: left;
}

.document-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.doc-year {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 2rem; /* Espacio entre el año y el botón */
}

/* Ajuste Responsive para la grilla estricta */
@media (max-width: 768px) {
    .grid-2-strict {
        grid-template-columns: 1fr; /* En celulares siempre pasará a 1 sola columna hacia abajo */
    }
    .about-intro {
        padding: 2rem 1rem;
    }
}

/* =========================================
   CLASES DE UTILIDAD GENERAL
========================================= */

/* Clase global para ocultar elementos dinámicos o filtrados (Convenios y Documentos Extras) */
.hidden {
    display: none !important;
}

/* =========================================
   Botón Flotante de WhatsApp
========================================= */
.whatsapp-btn-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    color: #ffffff;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    z-index: 3000;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}

.whatsapp-btn-float:hover {
    transform: scale(1.1);
    background-color: #20ba5a;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
    color: #ffffff;
}

.whatsapp-icon-svg {
    width: 32px;
    height: 32px;
    fill: #ffffff;
}

/* Ajuste sutil para pantallas de móviles (se hace más pequeño) */
@media (max-width: 768px) {
    .whatsapp-btn-float {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
    }
    .whatsapp-icon-svg {
        width: 26px;
        height: 26px;
    }
}