/* ===================== VARIABLES DE COLOR ===================== */
        :root {
            --primary-color: #003b50;      /* Color principal azul oscuro */
            --secondary-color: #667eea;    /* Color secundario morado claro */
            --accent-color: #764ba2;       /* Color de acento morado */
            --dark-color: #1a1a2e;         /* Color oscuro para textos */
            --light-color: #f8f9fa;        /* Color claro para fondos */
        }


        /* ===================== RESET Y CONFIGURACIÓN BASE ===================== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background: white;
            padding-top: 80px;
        }

        /* ===================== NAVBAR UNIFICADO ===================== */
        .navbar-custom {
            background: linear-gradient(135deg, var(--primary-color) 0%, #005a7a 100%);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            padding: 1rem 0;
            transition: all 0.3s ease;
        }

        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 700;
            color: white !important;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: transform 0.3s ease;
        }

        .navbar-brand:hover {
            transform: scale(1.05);
        }

        .logo-icon {
            width: 45px;
            height: 45px;
            background: white;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary-color);
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.9) !important;
            font-weight: 500;
            margin: 0 10px;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: white;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.1);
            color: white !important;
        }

        .nav-link:hover::after {
            width: 80%;
        }

        .dropdown-menu {
            background: white;
            border: none;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            border-radius: 12px;
            padding: 10px;
        }

        .dropdown-item {
            border-radius: 8px;
            padding: 10px 16px;
            transition: all 0.3s ease;
        }

        .dropdown-item:hover {
            background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
            color: white;
            transform: translateX(5px);
        }

        /* ===================== CONTENIDO PRINCIPAL ===================== */
        .main-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 2rem 1rem;
        }

        .page-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .page-header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }

        /* ===================== TARJETA DE FORMULARIO ===================== */
        .form-card {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            border-left: 4px solid var(--secondary-color);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            font-weight: 500;
            color: #333;
            margin-bottom: 0.5rem;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.75rem;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s ease;
            font-family: 'Poppins', sans-serif;
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
            outline: none;
        }

        /* ===================== BOTÓN ===================== */
        .btn-submit {
            width: 100%;                     /* Mantiene el ancho completo */
            padding: 1rem 3rem;              /* Mantiene tus proporciones originales */
            font-size: 1.1rem;               /* Mantiene el tamaño de texto original */
            font-weight: 600;                /* Mismo peso de fuente */
            border-radius: 10px;             /* Bordes redondeados */
            border: none;                    /* Sin borde */
            background: linear-gradient(135deg, var(--secondary-color), var(--accent-color)); /* Degradado */
            color: white;                    /* Texto blanco */
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            text-decoration: none;
            transition: all 0.3s ease;       /* Transición suave */
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);  /* Sombra con color */
        }

        /* Efecto hover */
        .btn-submit:hover {
            transform: translateY(-2px);    /* Levanta el botón */
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);  /* Sombra más pronunciada */
        }


        /* ===================== MENSAJE DE ÉXITO ===================== */
        .success-message {
            display: none;
            background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
            color: #155724;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 4px solid #28a745;
            margin-top: 1.5rem;
            text-align: center;
            font-weight: 500;
        }

        .success-message i {
            font-size: 2rem;
            display: block;
            margin-bottom: 0.5rem;
        }