:root {
    --primary-blue: #18578C;
    --primary-blue-dark: #0f3b60;
    --accent-yellow: #FFC011;
    --bg-light: #F9FAFB;
    --text-dark: #333333;
    --text-muted: #6c757d;

    --carrera-admin: #00A8B5; /* Aqua */
    --carrera-derecho: #B22222; /* Ladrillo */
    --carrera-pedagogia: #6A1B9A; /* Morado */
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    padding-top: 80px;
}

html {
    overflow-x: hidden;
}

/*--------------------------------------------------------------
# Barra de Navegación (Navbar) Siempre Visible
--------------------------------------------------------------*/
.navbar {
    background-color: var(--primary-blue) !important;
    padding: 10px 0;
    transition: padding 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed !important;
    top: 0 !important;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1030;
}

.navbar.scrolled {
    padding: 5px 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.navbar-brand img {
    max-height: 55px;
    width: auto;
    transition: max-height 0.3s ease;
}

.navbar.scrolled .navbar-brand img {
    max-height: 45px;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 0.95rem;
    margin: 0 5px;
    position: relative;
    transition: color 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover, 
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--accent-yellow);
}

.navbar-dark .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--accent-yellow);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover::after,
.navbar-dark .navbar-nav .nav-link.active::after {
    width: 80%;
}

.btn-login {
    background-color: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50px;
    padding: 8px 20px !important;
    transition: all 0.3s;
}

.btn-login:hover {
    background-color: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--primary-blue-dark) !important;
}

/*--------------------------------------------------------------
# Slider Principal (Hero Carousel)
--------------------------------------------------------------*/
.hero-carousel { position: relative; }

.carousel-item {
    height: 60vh;
    min-height: 300px;
    max-height: 450px;
    background-color: #000;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover !important;
    object-position: top center !important;
    opacity: 0.6;
}

.carousel-caption {
    bottom: 30%;
    z-index: 10;
}

.carousel-caption h1 {
    font-weight: 800;
    font-size: 3rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .carousel-item { height: 50vh; min-height: 350px; }
    .carousel-caption h1 { font-size: 2rem; }
}

.carousel-progress-container {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    z-index: 15;
}

.carousel-progress-bar {
    height: 100%;
    background-color: red;
    width: 0%;
}

/*--------------------------------------------------------------
# Secciones Generales y Animaciones
--------------------------------------------------------------*/
.section-padding { padding: 80px 0; }

.section-title {
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 50%; height: 3px;
    background-color: var(--accent-yellow);
    bottom: -10px; left: 25%;
}

.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.is-visible .fade-up {
    opacity: 1;
    transform: translateY(0);
}

/*--------------------------------------------------------------
# Tarjetas de Oferta Académica
--------------------------------------------------------------*/
.card-oferta {
    border: none; border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.card-oferta:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.card-oferta .card-img-top { 
	height: 200px;
    object-fit: cover !important;
    object-position: top center !important;
}

.border-admin { border-top: 3px solid var(--carrera-admin); padding-top: 15px;}
.text-admin { color: var(--carrera-admin); }
.btn-admin { background-color: var(--carrera-admin); color: white; }
.btn-admin:hover { background-color: #008f99; color: white; }

.border-derecho { border-top: 3px solid var(--carrera-derecho); padding-top: 15px;}
.text-derecho { color: var(--carrera-derecho); }
.btn-derecho { background-color: var(--carrera-derecho); color: white; }
.btn-derecho:hover { background-color: #8b1a1a; color: white; }

.border-pedagogia { border-top: 3px solid var(--carrera-pedagogia); padding-top: 15px;}
.text-pedagogia { color: var(--carrera-pedagogia); }
.btn-pedagogia { background-color: var(--carrera-pedagogia); color: white; }
.btn-pedagogia:hover { background-color: #4a136c; color: white; }

.btn-outline-dark { border: 2px solid #333; color: #333; }
.btn-outline-dark:hover { background-color: #333; color: white; }

/*--------------------------------------------------------------
# Headers de Páginas Internas (Carreras)
--------------------------------------------------------------*/
.page-header {
    padding: 80px 0 60px 0;
    color: white;
    background-size: cover;
    background-position: center;
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    opacity: 0.85;
}

.header-admin::before { background-color: var(--carrera-admin); }
.header-derecho::before { background-color: var(--carrera-derecho); }
.header-pedagogia::before { background-color: var(--carrera-pedagogia); }

.page-header .container { position: relative; z-index: 2; }
.page-header h1 { font-weight: 800; font-size: 2.5rem; }

.accordion-button:not(.collapsed) {
    color: var(--primary-blue);
    background-color: #eef2f6;
    font-weight: 600;
}
.accordion-button:focus { box-shadow: none; border-color: rgba(0,0,0,0.1); }

/*--------------------------------------------------------------
# Login Modal Escolar
--------------------------------------------------------------*/
.modal-content { border-radius: 15px; border: none; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
.modal-header.bg-institucional { background-color: var(--primary-blue); color: white; border-radius: 15px 15px 0 0; padding: 20px 30px; }
.modal-header .btn-close { filter: invert(1) grayscale(100%) brightness(200%); }
.login-form .form-control { padding: 12px 15px; border-radius: 8px; border: 1px solid #ddd; }
.btn-ingresar { background-color: var(--primary-blue); color: white; padding: 12px; border-radius: 8px; font-weight: 600; }

/*--------------------------------------------------------------
# Footer & Contacto
--------------------------------------------------------------*/
.footer-top { background-color: var(--primary-blue-dark); color: white; padding: 60px 0 30px 0; }
.footer-bottom { background-color: #0b2c4a; padding: 20px 0; color: #a0aec0; }
.social-links a { display: inline-block; width: 40px; height: 40px; background-color: rgba(255,255,255,0.1); color: white; border-radius: 50%; text-align: center; line-height: 40px; margin-right: 10px; transition: all 0.3s; }
.social-links a:hover { background-color: var(--accent-yellow); color: var(--primary-blue-dark); }
.contact-info-box i { color: var(--primary-blue); font-size: 1.5rem; margin-bottom: 15px; }

@media (max-width: 767px) {
    .qr-container-desktop {
        display: none !important;
    }
}

.whatsapp-card {
    transition: all 0.3s ease;
}

.whatsapp-card:hover {
    background-color: #E8FFEE !important;
    border-color: #7EFF8C !important;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.15) !important;
    transform: translateY(-15px);
}

.qr-image {
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Efecto de rebote suave */
}

.whatsapp-card:hover .qr-image {
    transform: rotate(8deg) scale(1.05);
}

.btn-whatsapp-float {
    position: fixed; bottom: 30px; right: 30px;
    background-color: #25D366; color: white;
    border-radius: 50%; width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center;
    font-size: 30px; box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000; transition: transform 0.3s;
}
.btn-whatsapp-float:hover { transform: scale(1.1); color: white; }