:root {
    --gta-navy: #0A2540;
    --gta-blue: #0d6efd;
    --gta-light: #f8f9fa;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    color: #333;
    padding-top: 76px; /* Altura del navbar fijo */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Tipografía y Utilidades */
.text-navy { color: var(--gta-navy) !important; }
.bg-navy { background-color: var(--gta-navy) !important; }
.tracking-wide { letter-spacing: 1.5px; }
main { flex: 1; }

/* Navbar Premium */
.navbar {
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.navbar-nav .nav-link {
    font-weight: 600;
    margin: 0 12px;
    color: var(--gta-navy);
    position: relative;
    font-size: 0.95rem;
}
.navbar-nav .nav-link::after {
    content: ''; position: absolute; width: 0; height: 2px;
    bottom: 0; left: 0; background-color: var(--gta-blue);
    transition: var(--transition);
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after { width: 100%; }

/* Headers de Páginas Internas */
.page-header {
    background: linear-gradient(rgba(10, 37, 64, 0.85), rgba(10, 37, 64, 0.95)), url('../img/02-ABOUT.jpg') center/cover;
    padding: 80px 0;
    color: white;
    text-align: center;
    margin-bottom: 50px;
}

/* Tarjetas y Contenedores de Imagen */
.img-container {
    overflow: hidden;
    background: #e9ecef;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
.img-container img {
    transition: transform 0.6s ease;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hover-zoom:hover .img-container img { transform: scale(1.05); }

/* Listas de Requisitos Profesionales */
.req-list { list-style: none; padding: 0; }
.req-list li {
    padding: 12px 20px;
    background: #fff;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid var(--gta-blue);
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

/* Tarjetas de Servicios */
.service-card {
    transition: var(--transition);
    border: 1px solid #eaeaea;
    border-radius: 12px;
}
.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--gta-blue);
    box-shadow: 0 15px 30px rgba(13, 110, 253, 0.1) !important;
}

/* Formularios */
.form-control-lg {
    font-size: 0.95rem;
    padding: 1rem 1.25rem;
    background: #f4f6f9;
    border: 1px solid transparent;
}
.form-control-lg:focus {
    background: #fff;
    border-color: var(--gta-blue);
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.1);
}