/* --- Variables de Color UTSEM --- */
:root {
    --utsem-green: #008000;
    --utsem-dark-green: #006400;
    --white: #ffffff;
    --light-gray: #f4f4f4;
    --medium-gray: #dddddd;
    --dark-gray: #333333;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* --- Estilos Generales --- */
body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Cabecera --- */
header {
    background-color: var(--utsem-green);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo {
    height: 60px;
    margin-right: 20px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-title {
    display: flex;
    align-items: center;
}

.btn-login {
    background-color: var(--white);
    color: var(--utsem-green);
    border: 2px solid var(--utsem-green);
    font-weight: bold;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.btn-login:hover {
    background-color: var(--light-gray);
    color: var(--utsem-dark-green);
}

/* --- Filtros --- */
.filters {
    background-color: var(--white);
    padding: 20px;
    margin: 30px 0;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.filters select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--medium-gray);
    border-radius: 5px;
    font-size: 1rem;
}

/* --- Grid de Vacantes --- */
.vacantes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.vacante-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.vacante-card:hover {
    transform: translateY(-5px);
}

.vacante-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.vacante-content {
    padding: 20px;
}

.vacante-content h2 {
    margin-top: 0;
    color: var(--utsem-dark-green);
}

.carrera-tag {
    display: inline-block;
    background-color: var(--utsem-green);
    color: var(--white);
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8em;
    margin-bottom: 15px;
}

.no-vacantes {
    grid-column: 1 / -1;
    text-align: center;
    font-size: 1.2rem;
    padding: 40px;
}

/* --- Pie de Página --- */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    background-color: var(--dark-gray);
    color: var(--white);
}

/* --- Estilos del Panel de Administrador --- */
.admin-login {
    width: 100%;
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.admin-header {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 1rem 0;
}
.admin-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-header nav a {
    color: var(--white);
    text-decoration: none;
    margin-left: 20px;
    font-weight: bold;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background-color: var(--white);
}

.admin-table th, .admin-table td {
    border: 1px solid var(--medium-gray);
    padding: 12px;
    text-align: left;
}

.admin-table th {
    background-color: var(--utsem-green);
    color: var(--white);
}

.btn, button {
    padding: 8px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-size: 0.9em;
    margin-right: 5px;
}
.btn-edit { background-color: #ffc107; color: black; }
.btn-delete { background-color: #dc3545; color: white; }
.btn-primary { background-color: var(--utsem-green); color: white; }
.btn-secondary { background-color: var(--dark-gray); color: white; }

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--medium-gray);
    border-radius: 5px;
    box-sizing: border-box;
}

.form-container {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    margin-top: 30px;
}

/* =================================================================== */
/* Estilos para Vista Previa (Modal)                                  */
/* =================================================================== */

.vacante-thumbnail {
    cursor: pointer;
    transition: opacity 0.2s ease-in-out;
}

.vacante-thumbnail:hover {
    opacity: 0.8;
}

.modal-overlay {
    display: none; /* Corregido: Oculto por defecto */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    justify-content: center;
    align-items: center;
}

.modal-content {
    display: block;
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    animation: zoomIn 0.3s;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 45px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--medium-gray);
}

/* Animación simple para la imagen */
@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.admin-table .btn {
    min-width: 90px;          /* Establece un ancho mínimo para los botones */
    text-align: center;       /* Centra el texto si el botón es más ancho */
    box-sizing: border-box;   /* Asegura que el padding y borde se incluyan en el ancho total */
}