/* public/css/style.css */

/* Variables CSS para una paleta de colores y espaciado consistente */
:root {
    --primary-color: #004481; /* Azul principal de Clinicamaicao.com */
    --primary-hover-color: #003366; /* Azul más oscuro para hover */
    --secondary-color: #5a6268; /* Gris oscuro para acciones secundarias */
    --secondary-hover-color: #495057;
    --success-color: #28a745; /* Verde para éxito (estándar) */
    --success-hover-color: #218838;
    --danger-color: #dc3545; /* Rojo para peligro/eliminar (estándar) */
    --danger-hover-color: #c82333;
    --light-bg: #f8f9fa; /* Fondo muy claro */
    --white-bg: #ffffff; /* Fondo blanco para tarjetas/contenedores */
    --dark-text-color: #343a40; /* Color de texto principal oscuro */
    --light-text-color: #6c757d; /* Color de texto secundario/gris */
    --header-text-color: #ffffff; /* Color para texto sobre fondos oscuros (ej. header) */
    --table-header-text-color: #ffffff; /* Color para texto en encabezados de tabla (azul) */
    --border-color: #dee2e6; /* Color de borde suave */
    --shadow-subtle: rgba(0, 0, 0, 0.08); /* Sombra ligera */
    --shadow-medium: rgba(0, 0, 0, 0.15); /* Sombra media */
    --border-radius-card: 10px; /* Bordes más redondeados para módulos */
    --border-radius-button: 5px; /* Bordes redondeados para botones/inputs */
    --spacing-unit: 1rem; /* Unidad base para espaciado */
}

body {
    font-family: 'Open Sans', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; /* Fuentes más modernas */
    margin: 0;
    padding: 0;
    background-color: var(--light-bg);
    color: var(--dark-text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Para que el footer se quede abajo */
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #003366 100%);
    color: var(--header-text-color);
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
}

header h1 {
    margin: 0;
    font-size: 1.8em;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    flex: 1;
    text-align: center;
    padding-left: 50px; /* Espacio para el botón hamburguesa */
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.4em;
        padding-left: 50px;
    }
}

/* --- Sidebar and Navigation Modernization --- */

.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    background-color: var(--light-bg); /* Ensure consistent background */
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--primary-color) 0%, #003366 100%);
    color: var(--header-text-color);
    padding: 0;
    box-shadow: 4px 0 20px rgba(0,0,0,0.2);
    flex-shrink: 0;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease;
    z-index: 999;
    border-right: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(255,255,255,0.3) 0%, transparent 100%);
}

/* Sidebar oculto por defecto en móvil */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        transform: translateX(-100%);
        box-shadow: 4px 0 30px rgba(0,0,0,0.4);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .sidebar.active {
        transform: translateX(0) !important;
    }
}

/* Sidebar visible en desktop por defecto, pero puede ocultarse con hamburguesa */
@media (min-width: 769px) {
    .sidebar {
        position: relative;
        transform: translateX(0);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), position 0.35s ease;
        width: 280px;
        flex-shrink: 0;
    }
    
    /* Cuando el sidebar no tiene la clase active en desktop, ocultarlo */
    .sidebar:not(.active) {
        transform: translateX(-100%) !important;
        position: fixed !important;
        left: 0 !important;
        top: 0 !important;
        height: 100vh !important;
        z-index: 999 !important;
        width: 280px !important;
    }
    
    .sidebar.active {
        transform: translateX(0) !important;
        position: relative !important;
        left: auto !important;
        top: auto !important;
    }
    
    /* Ajustar el contenido principal cuando el sidebar está oculto */
    .app-container:has(.sidebar:not(.active)) .main-content-area {
        margin-left: 0;
        width: 100%;
    }
}

.sidebar-header {
    padding: 25px 20px;
    text-align: center;
    border-bottom: 2px solid rgba(255,255,255,0.2);
    background: rgba(0,0,0,0.1);
    margin-bottom: 20px;
    position: relative;
}

.sidebar-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.5em;
    font-weight: 600;
    color: var(--header-text-color);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.main-nav {
    flex-grow: 1; /* Allow nav to take available space */
    overflow-y: auto; /* Enable scrolling for long menus */
    padding-bottom: 20px; /* Padding at the bottom of the scrollable area */
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Ocultar main-nav en móvil cuando no está activo */
@media (max-width: 768px) {
    .main-nav {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        padding: 0;
    }
    
    .main-nav.active {
        max-height: 1000px;
        opacity: 1;
        padding-bottom: 20px;
    }
}

/* En desktop, main-nav se oculta cuando sidebar no está activo */
@media (min-width: 769px) {
    .main-nav {
        max-height: none;
        opacity: 1;
        padding-bottom: 20px;
        transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    /* Ocultar main-nav cuando el sidebar no está activo */
    .sidebar:not(.active) .main-nav {
        opacity: 0;
        max-height: 0;
        overflow: hidden;
        padding: 0;
    }
    
    /* Mostrar main-nav cuando el sidebar está activo */
    .sidebar.active .main-nav {
        opacity: 1;
        max-height: none;
        padding-bottom: 20px;
    }
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav ul li {
    margin-bottom: 5px; /* Space between menu items */
}

.main-nav ul li a {
    color: var(--header-text-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    padding: 14px 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0;
    font-weight: 500;
    font-size: 0.95rem;
    margin: 0;
    background-color: transparent;
    border-left: 3px solid transparent;
    position: relative;
}

.main-nav ul li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--success-color);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.main-nav ul li a:hover::before,
.main-nav ul li a.active::before {
    transform: scaleY(1);
}

.main-nav ul li a i {
    margin-right: 12px;
    font-size: 1.2em;
    width: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.main-nav ul li a:hover {
    background-color: rgba(255,255,255,0.12);
    transform: translateX(8px);
    border-left-color: rgba(255,255,255,0.3);
}

.main-nav ul li a:hover i {
    transform: scale(1.15);
}

/* Active menu item style */
.main-nav ul li a.active,
.main-nav ul li a.current-page {
    background-color: rgba(255,255,255,0.2);
    border-left-color: var(--success-color);
    font-weight: 600;
    box-shadow: inset 4px 0 8px rgba(0,0,0,0.2);
}

/* User Info and Auditorio Selector within Sidebar */
li.user-info {
    padding: 15px; /* Consistent padding */
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto; /* Push to the bottom */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

li.user-info span {
    font-weight: 600;
    font-size: 0.95rem;
}

li.user-info a {
    background-color: var(--danger-color);
    padding: 8px 15px; /* Consistent padding */
    border-radius: 5px;
    font-size: 0.85rem;
    display: inline-flex; /* For icon alignment */
    align-items: center;
    gap: 5px;
}

.auditorio-selector-container {
    padding: 15px; /* Consistent padding */
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 15px;
}

.auditorio-selector {
    width: calc(100% - 20px); /* Adjust for margin */
    padding: 10px 15px;
    border-radius: 5px;
    border: 1px solid rgba(255,255,255,0.3);
    background-color: rgba(255,255,255,0.1);
    color: var(--header-text-color);
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin: 0 10px; /* Match menu item margin */
}

.auditorio-selector option {
    background-color: var(--primary-color);
    color: var(--header-text-color);
}

.auditorio-selector:hover {
    background-color: rgba(255,255,255,0.2);
}

.single-auditorio-display {
    color: var(--header-text-color);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.6rem 1rem;
}


.main-content-area {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

main {
    padding: 2rem; /* Mantengo el padding original para el ajuste principal */
    max-width: 1600px; /* Ancho máximo para el contenido principal (aumentado de 1080px) */
    margin: 2rem auto;
    background-color: var(--white-bg);
    box-shadow: 0 8px 25px var(--shadow-medium);
    border-radius: var(--border-radius-card);
}

h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 2.5em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    padding-bottom: 10px;
}
h2::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 5px;
}


/* General Form Styles (Shared by ReservaForm and UserForm) */
form {
    max-width: 600px;
    margin: 0 auto;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-card);
    background-color: var(--white-bg);
    box-shadow: 0 5px 15px var(--shadow-subtle);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    color: var(--dark-text-color);
    font-size: 1.05rem;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: calc(100% - 2px);
    padding: 0.8rem 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-button);
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 68, 129, 0.25);
    outline: none;
}
.form-group select:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
    opacity: 0.8;
}
.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    transform: scale(1.2);
}


button[type="submit"], .button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: var(--border-radius-button);
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
    display: inline-block;
    margin-top: 1.5rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

button[type="submit"]:hover, .button:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.button.secondary {
    background-color: var(--light-text-color);
    color: white;
    margin-left: 1rem;
}
.button.secondary:hover {
    background-color: var(--secondary-hover-color);
}
.button.success {
    background-color: var(--success-color);
    color: white;
}
.button.success:hover {
    background-color: var(--success-hover-color);
}
.button.danger {
    background-color: var(--danger-color);
    color: white;
}
.button.danger:hover {
    background-color: var(--danger-hover-color);
}
.button.small {
    padding: 0.35rem 0.7rem;
    font-size: 0.85rem;
}

/* =============================================================================
   Estilos para los Botones de Icono (Acciones) - Redondos y Sólidos
   ========================================================================== */

.actions-cell {
    text-align: center;
}

.actions-cell .action-icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px; /* Un poco más grandes */
    height: 42px; /* Un poco más grandes */
    border-radius: 50%; /* Círculo perfecto */
    text-decoration: none;
    color: white; /* Color de icono blanco */
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2); /* Sombra más pronunciada */
    margin: 0 8px; /* Espacio entre los botones */
}

.actions-cell .action-icon-button:hover {
    transform: translateY(-3px); /* Efecto de elevación al pasar el cursor */
    box-shadow: 0 6px 12px rgba(0,0,0,0.3); /* Sombra más grande al pasar el cursor */
}

.actions-cell .action-icon-button.edit {
    background-color: var(--secondary-color);
}

.actions-cell .action-icon-button.delete {
    background-color: var(--danger-color);
}

.actions-cell .action-icon-button i {
    font-size: 18px;
}


.message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: var(--border-radius-button);
    font-weight: 600;
    text-align: center;
    opacity: 1;
    transition: opacity 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}


/* Login Specific Styles */
@import url('https://fonts.googleapis.com/css?family=Montserrat:400,800');

body.login-page {
    background: #f6f5f7;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    font-family: 'Montserrat', sans-serif;
    height: 100vh;
    margin: 0;
    overflow: hidden;
}

body.login-page .app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f6f5f7;
    width: 100%;
    overflow: visible !important;
}

body.login-page .sidebar {
    display: none;
}

body.login-page .main-content-area {
    flex: 1;
    display: flex !important;
    flex-direction: column;
    min-height: 0;
    overflow: visible !important;
    background-color: #f6f5f7;
    justify-content: center;
    align-items: stretch;
    width: 100%;
    height: 100vh;
    position: relative;
}

body.login-page header {
    display: none !important;
}

body.login-page .hamburger-menu {
    display: none !important;
}

body.login-page .content-wrapper {
    flex: 1;
    display: flex !important;
    flex-direction: column;
    min-height: 0;
    overflow: visible !important;
    justify-content: center;
    align-items: stretch;
    background-color: #f6f5f7;
    padding: 0;
    width: 100%;
    height: 100vh;
    position: relative;
}

body.login-page footer {
    margin-top: auto;
    flex-shrink: 0;
    background-color: #222;
    color: #fff;
    box-shadow: none;
    border-top: none;
    padding: 1rem;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    text-align: center;
}

body.login-page footer p {
    margin: 10px 0;
    font-size: 14px;
}

body.login-page footer a {
    color: #3c97bf;
    text-decoration: none;
}

/* Login Container Styles */
body.login-page .container {
    background-color: #fff;
    border-radius: 0;
    box-shadow: none;
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    min-height: 100vh;
    height: 100vh;
    margin: 0;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page .form-container {
    position: absolute;
    top: 0;
    height: 100%;
    transition: all 0.6s ease-in-out;
    display: block !important;
    visibility: visible !important;
}

body.login-page .sign-in-container {
    left: 0;
    width: 50%;
    z-index: 2;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page .sign-up-container {
    left: 0;
    width: 50%;
    opacity: 0;
    z-index: 1;
}

body.login-page .overlay-container {
    position: absolute;
    top: 0;
    left: 50%;
    width: 50%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.6s ease-in-out;
    z-index: 100;
    display: block !important;
    visibility: visible !important;
}

body.login-page .overlay {
    background: var(--primary-color);
    background: -webkit-linear-gradient(to right, var(--primary-color), #003366);
    background: linear-gradient(to right, var(--primary-color), #003366);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 0 0;
    color: #FFFFFF;
    position: relative;
    left: -100%;
    height: 100%;
    width: 200%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
    display: block !important;
}

body.login-page .overlay-panel {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 40px 50px;
    text-align: center;
    top: 0;
    height: 100%;
    width: 50%;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

body.login-page .overlay-right {
    right: 0;
    transform: translateX(0);
}

body.login-page .overlay-panel h1 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: #FFFFFF;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.2;
}

body.login-page .overlay-panel p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #FFFFFF;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
    margin: 0;
    padding: 0 10px;
}

body.login-page form {
    background-color: #FFFFFF;
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 50px;
    height: 100%;
    text-align: center;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page form h1 {
    font-weight: bold;
    margin: 0 0 20px 0;
    color: var(--primary-color);
    font-size: 2rem;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page form span {
    font-size: 12px;
    color: #666;
    margin-bottom: 20px;
}

body.login-page form input {
    background-color: #eee;
    border: none;
    padding: 12px 15px;
    margin: 8px 0;
    width: 100%;
    border-radius: 5px;
    box-sizing: border-box;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page form button {
    border-radius: 20px;
    border: 1px solid var(--primary-color);
    background-color: var(--primary-color);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    padding: 12px 45px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: transform 80ms ease-in;
    margin-top: 20px;
    cursor: pointer;
    width: auto;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

body.login-page form button:active {
    transform: scale(0.95);
}

body.login-page form button:focus {
    outline: none;
}

body.login-page button.ghost {
    background-color: transparent;
    border-color: #FFFFFF;
    color: #FFFFFF;
    margin-top: 20px;
    border: 2px solid #FFFFFF;
    padding: 12px 45px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 80ms ease-in;
}

body.login-page button.ghost:active {
    transform: scale(0.95);
}

body.login-page form a {
    color: #333;
    font-size: 14px;
    text-decoration: none;
    margin: 15px 0;
}

body.login-page form a:hover {
    text-decoration: underline;
}

body.login-page .social-container {
    margin: 20px 0;
}

body.login-page .social-container a {
    border: 1px solid #DDDDDD;
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin: 0 5px;
    height: 40px;
    width: 40px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}

body.login-page .social-container a:hover {
    background-color: #f0f0f0;
    border-color: #999;
}

.message.error,
.message.success {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    font-size: 14px;
    text-align: left;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Calendar Specific Styles */
.calendar-legend {
    display: flex;
    align-items: center;
    gap: 1.8rem;
    margin-bottom: 1.8rem;
    font-size: 0.98em;
    flex-wrap: wrap;
    justify-content: flex-start;
    padding-left: 5px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    color: var(--dark-text-color);
}

.legend-item .icon {
    font-size: 1.4em;
    font-weight: 900;
    line-height: 1;
}

.legend-item.available .icon {
    color: var(--success-color);
}

.legend-item.occupied .icon {
    color: var(--danger-color);
}

.info-text {
    margin-left: auto;
    color: var(--light-text-color);
    font-style: italic;
    font-size: 0.88em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.info-text .fas {
    color: var(--primary-color);
}

.calendar-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.8rem;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
    margin-right: auto;
}

.view-button {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--border-radius-button);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.view-button.active {
    background-color: var(--primary-color);
}

.view-button:hover {
    background-color: var(--primary-hover-color);
}

.navigation-controls {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.monthly-calendar {
    margin-top: 2rem;
}

.monthly-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.8rem;
    gap: 0.8rem;
}

.monthly-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    background-color: var(--white-bg);
    padding: 15px;
    border-radius: var(--border-radius-card);
    box-shadow: 0 2px 8px var(--shadow-subtle);
}

.monthly-day-header {
    text-align: center;
    font-weight: 700;
    padding: 10px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    font-size: 0.9rem;
}

.monthly-day {
    min-height: 100px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--white-bg);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
    position: relative;
}

.monthly-day:hover {
    background-color: #e3f2fd;
    transform: scale(1.02);
}

.monthly-day.empty {
    background-color: var(--light-bg);
    cursor: default;
}

.monthly-day.today {
    border: 2px solid var(--primary-color);
    background-color: #e3f2fd;
}

.monthly-day.past {
    background-color: #f5f5f5;
    opacity: 0.6;
    cursor: not-allowed;
}

.monthly-day-number {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 5px;
}

.monthly-reservation-indicator {
    background-color: var(--danger-color);
    color: white;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 5px;
    display: inline-block;
}

.calendar-controls .control-button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.7rem 1.4rem;
    border: none;
    border-radius: var(--border-radius-button);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    min-width: 75px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}

.calendar-controls .control-button:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25);
}

#currentWeekRange {
    font-weight: 700;
    font-size: 1.4em;
    min-width: 280px;
    text-align: center;
    color: var(--dark-text-color);
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.table-responsive {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-card);
    box-shadow: 0 5px 15px var(--shadow-subtle);
}

#availabilityTable {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    min-width: 700px; /* Aumentado para mejor visualización en desktop */
    border-radius: var(--border-radius-card); /* Bordes redondeados */
    overflow: hidden; /* Asegura que los bordes redondeados se apliquen */
    box-shadow: 0 5px 15px var(--shadow-subtle); /* Sombra sutil */
}

#availabilityTable th,
#availabilityTable td {
    border: 1px solid var(--border-color); /* Bordes más suaves */
    padding: 1.2rem 0.8rem; /* Más padding para espaciado */
    text-align: center;
    vertical-align: middle;
    font-size: 0.95rem;
    position: relative;
    min-height: 85px; /* Altura mínima, permite que crezca */
    box-sizing: border-box;
    white-space: normal;
    font-family: 'Open Sans', sans-serif; /* Asegura la tipografía moderna */
}

#availabilityTable th {
    background-color: var(--primary-color);
    color: var(--table-header-text-color); /* Usar variable para el color del texto */
    font-weight: 700;
    padding: 1.5rem 0.8rem; /* Más padding para encabezados */
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.05em; /* Ligero espaciado entre letras */
}

#availabilityTable th:first-child,
#availabilityTable td:first-child {
    background-color: var(--light-bg);
    font-weight: 600;
    width: 12%; /* Ancho fijo para la primera columna */
    min-width: 120px;
    max-width: 180px;
    text-align: left;
    padding-left: 1.5rem; /* Más padding a la izquierda */
    color: var(--dark-text-color);
    white-space: nowrap;
}

/* Efecto hover en las celdas */
#availabilityTable td:hover {
    background-color: #eef5ff; /* Un azul muy claro al pasar el ratón */
    cursor: pointer;
    transition: background-color 0.3s ease;
}

/* Filas impares para un efecto de cebra sutil */
#availabilityTable tbody tr:nth-child(odd) {
    background-color: var(--white-bg);
}
#availabilityTable tbody tr:nth-child(even) {
    background-color: #fdfdfd; /* Un blanco muy ligero */
}


/* Contenido dentro de las celdas del calendario para alineación */
#availabilityTable td .cell-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    position: relative;
    gap: 0.4rem; /* Más espacio entre elementos */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: normal;
}

#availabilityTable td.occupied .cell-content span.nombre {
    font-weight: 600;
    font-size: 0.95em; /* Ligeramente más grande para el nombre */
    line-height: 1.4;
    text-transform: uppercase;
    white-space: normal;
    max-width: 95%;
    color: var(--dark-text-color);
}

#availabilityTable td.occupied .cell-content .icon-occupied i {
    font-size: 2.2em; /* Icono de ocupado más grande */
    color: var(--danger-color); /* Color rojo para ocupado */
}

#availabilityTable td.available .cell-content .icon-available i {
    font-size: 2.8em; /* Icono de disponible más grande y visible */
    color: var(--success-color); /* Color verde para disponible */
    text-shadow: 0 0 10px rgba(40, 167, 69, 0.6); /* Sombra más pronunciada para resaltarlo */
}

/* Ocultar el texto "Disponible" y "Ocupado" si se usan solo iconos */
#availabilityTable td.available .cell-content span.text-available,
#availabilityTable td.occupied .cell-content span.text-occupied {
    display: none;
}


/* Estilos para el botón de eliminar en la celda */
.delete-button {
    position: absolute;
    top: 6px;
    right: 6px;
    background: none;
    border: none;
    color: var(--danger-color);
    font-size: 1.2em;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease-in-out, transform 0.2s ease;
    padding: 0;
    line-height: 1;
    z-index: 10;
}

.occupied:hover .delete-button {
    opacity: 1;
    transform: scale(1.15);
}

.delete-button:hover {
    color: var(--danger-hover-color);
    transform: scale(1.25);
}

/* Tooltip de reserva */
.reserva-tooltip {
    position: fixed;
    background-color: var(--white-bg); /* Fondo blanco */
    color: var(--dark-text-color); /* Color de texto oscuro para que sea legible sobre blanco */
    padding: 12px 18px;
    border-radius: var(--border-radius-button);
    z-index: 10000;
    font-size: 0.9em;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 5px 20px rgba(0,0,0,0.5);
    opacity: 0; /* Controlado por JS, será 1 al mostrarse */
    transition: opacity 0.2s ease-in-out;
    display: none;
}
.reserva-tooltip p {
    margin: 0;
    padding: 2px 0;
    color: var(--dark-text-color); /* Color del texto dentro del tooltip (negro) */
    font-weight: bold; /* Texto en negrita */
}
.reserva-tooltip p strong {
    color: var(--primary-color); /* Las etiquetas (Nombre, Horario, Propósito) en azul principal */
}

.reserva-tooltip[style*="display: block"],
.reserva-tooltip.show {
    opacity: 1 !important;
    display: block !important;
}

.reserva-tooltip::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 100%;
    border-width: 7px;
    border-style: solid;
    border-color: var(--white-bg) transparent transparent transparent; /* Flecha blanca */
}

.reserva-tooltip.tooltip-bottom::after {
    top: -14px;
    border-color: transparent transparent var(--white-bg) transparent; /* Flecha blanca cuando está abajo */
}

/* Estilos para el Modal de Confirmación (Motivo de Eliminación) */
.modal {
    display: none; /* Oculto por defecto */
    position: fixed; /* Permanece en la misma posición incluso al hacer scroll */
    z-index: 1000; /* Se superpone a todo lo demás */
    left: 0;
    top: 0;
    width: 100%; /* Ancho completo */
    height: 100%; /* Altura completa */
    overflow: auto; /* Habilitar scroll si es necesario */
    background-color: rgba(0,0,0,0.6); /* Fondo oscuro semi-transparente */
    display: flex; /* Usar flexbox para centrar el contenido */
    align-items: center; /* Centrado vertical */
    justify-content: center; /* Centrado horizontal */
}

.modal-content {
    background-color: var(--white-bg);
    margin: auto; /* Centrado automático */
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-card);
    width: 90%; /* Ancho del modal */
    max-width: 500px; /* Ancho máximo para pantallas grandes */
    box-shadow: 0 8px 25px var(--shadow-medium);
    position: relative; /* Para posicionar el botón de cerrar */
    animation: fadeIn 0.3s ease-out; /* Animación de entrada */
}

.modal-content h3 {
    color: var(--primary-color);
    text-align: center;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.8em;
}

.modal-content textarea {
    width: calc(100% - 20px); /* Ajuste para padding */
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-button);
    font-size: 1rem;
    box-sizing: border-box;
    resize: vertical; /* Permitir redimensionar verticalmente */
}

.modal-content button {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-content .message {
    margin-top: 15px;
}

.close-button {
    color: var(--light-text-color);
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--danger-color);
    text-decoration: none;
    cursor: pointer;
}

/* Animación de entrada del modal */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Histórico de Reservas */
.filter-form {
    background-color: var(--light-bg);
    padding: 1.8rem;
    border-radius: var(--border-radius-card);
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    align-items: flex-end;
    box-shadow: 0 3px 10px var(--shadow-subtle);
}

.filter-form label {
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--dark-text-color);
    font-size: 1.05rem;
}

.filter-form input[type="date"],
.filter-form input[type="text"] {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    flex-grow: 1;
    min-width: 130px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.filter-form input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 68, 129, 0.25);
    outline: none;
}


.filter-form button {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}

.filter-form button:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25);
}

#clearFilter {
    background-color: var(--secondary-color);
}

#clearFilter:hover {
    background-color: var(--secondary-hover-color);
}

.table-responsive {
    overflow-x: auto;
}

#historicoTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow-subtle);
    border-radius: var(--border-radius-card);
    overflow: hidden;
}

#historicoTable th,
#historicoTable td {
    border: 1px solid #eee;
    padding: 1.2rem;
    text-align: left;
}

#historicoTable th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

#historicoTable tr:nth-child(even) {
    background-color: #f8f9fa;
}

#historicoTable tr:hover {
    background-color: #e2f0fe;
}

/* Estilos para las píldoras de estado (badges) */
.status-badge {
    display: block;
    margin-bottom: 8px;
    padding: 0.5em 0.9em;
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 20px;
    color: #ffffff !important;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.status-active {
    background-color: var(--success-color);
}

.status-badge.status-deleted {
    background-color: var(--danger-color);
}

/* Contenedor para la celda de estado en la tabla de usuarios */
.status-cell-container {
    display: inline-block; /* Permite que el contenedor se centre con text-align */
    text-align: center;
}

.toggle-status-form {
    margin: 0;
}

/* User Management Table Styles */
.user-actions {
    margin-bottom: 1.5rem;
    text-align: right;
    padding-right: 5px;
}
.user-actions .button {
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}
.user-actions .button:hover {
    transform: translateY(-1px);
}

#userTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow-subtle);
    border-radius: var(--border-radius-card);
    table-layout: fixed; /* Añadido para controlar anchos */
}
#userTable th,
#userTable td {
    border: 1px solid #eee;
    padding: 1.2rem;
    text-align: left;
    vertical-align: middle;
}
#userTable th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
#userTable tr:nth-child(even) {
    background-color: #f8f9fa;
}
#userTable tr:hover {
    background-color: #e2f0fe;
}

/* =============================================================================
   Estilos para la Tabla de Gestión de Usuarios
   ========================================================================== */

#userTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow-subtle);
    border-radius: var(--border-radius-card);
    table-layout: fixed;
}

#userTable th, #userTable td {
    border: 1px solid #eee;
    padding: 1rem;
    text-align: left;
    vertical-align: middle;
}

#userTable th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

#userTable tr:nth-child(even) {
    background-color: #f8f9fa;
}

#userTable tr:hover {
    background-color: #e2f0fe;
}

/* Anchos de columna para la tabla de usuarios y auditorios */
#userTable th:nth-child(1) { width: 5%; }
#userTable th:nth-child(2) { width: 25%; } /* Ajustado para Nombre */
#userTable th:nth-child(3) { width: 30%; } /* Ajustado para Ubicación/Email */
#userTable th:nth-child(4) { width: 15%; } /* Ajustado para Capacidad/Rol */
#userTable th:nth-child(5) { width: 25%; } /* Ajustado para Acciones */

/* Centrado de columnas específicas */
#userTable th:nth-child(1), #userTable td:nth-child(1),
#userTable th:nth-child(4), #userTable td:nth-child(4),
#userTable th:nth-child(5), #userTable td:nth-child(5),
#userTable th:nth-child(6), #userTable td:nth-child(6),
#userTable th:nth-child(7), #userTable td:nth-child(7) {
    text-align: center;
}

/* Estilos para el Interruptor de Palanca (Toggle Switch) */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--danger-color);
    transition: .4s;
    border-radius: 28px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--success-color);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

/* Formulario de cambio de rol */
.role-change-form select {
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-button);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    cursor: pointer;
    width: 100%;
    max-width: 150px;
}

/* Estilos para la tabla de Auditorios */
#auditorioTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    box-shadow: 0 8px 25px var(--shadow-subtle);
    border-radius: var(--border-radius-card);
    table-layout: fixed;
}

#auditorioTable th, #auditorioTable td {
    border: 1px solid #eee;
    padding: 1rem;
    text-align: left;
    vertical-align: middle;
}

#auditorioTable th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

#auditorioTable tr:nth-child(even) {
    background-color: #f8f9fa;
}

#auditorioTable tr:hover {
    background-color: #e2f0fe;
}

#auditorioTable th:nth-child(1) { width: 5%; text-align: center; }
#auditorioTable th:nth-child(2) { width: 30%; }
#auditorioTable th:nth-child(3) { width: 30%; }
#auditorioTable th:nth-child(4) { width: 15%; text-align: center; }
#auditorioTable th:nth-child(5) { width: 20%; text-align: center; }


footer {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--primary-color);
    color: white;
    margin-top: 2.5rem;
    width: 100%;
    box-shadow: 0 -3px 6px var(--shadow-medium);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }
    /* Original nav ul styles - these will be replaced by .main-nav ul */
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    nav ul li {
        margin: 0;
    }
    li.user-info {
        flex-direction: column;
        align-items: flex-start;
        margin-left: 0;
        padding-right: 0;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        width: calc(100% - 2rem);
        box-sizing: border-box;
    }
    main {
        padding: 1rem;
        margin: 1rem auto;
    }
    h2 {
        font-size: 1.8em;
        margin-bottom: 1.5rem;
    }
    .calendar-legend {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    .info-text {
        margin-left: 0;
    }
    .calendar-controls {
        flex-direction: column;
        gap: 1rem;
    }
    #currentWeekRange {
        order: -1;
        font-size: 1.1em;
    }
    .calendar-controls .control-button {
        width: 100%;
        min-width: unset;
        font-size: 0.95rem;
        padding: 0.75rem 1rem;
    }

    #availabilityTable {
        min-width: 100%; /* Forzar que ocupe todo el ancho disponible */
    }
    #availabilityTable th,
    #availabilityTable td {
        padding: 0.5rem 0.3rem;
        font-size: 0.8em;
    }
    #availabilityTable td.date-column-header {
        width: 70px;
        min-width: 70px;
        padding-left: 0.5rem;
    }
    #availabilityTable td.date-column-header .date-display {
        font-size: 1em;
    }
    #availabilityTable td.date-column-header .weekday-display {
        font-size: 0.7em;
    }
    #availabilityTable td.occupied .cell-content span.nombre {
        font-size: 0.75em;
    }
    #availabilityTable td.occupied .cell-content span.icon-occupied {
        font-size: 1.1em;
    }
    .delete-button {
        font-size: 0.9em;
        top: 3px;
        right: 3px;
    }

    .filter-form {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1rem;
    }
    .filter-form input,
    .filter-form button {
        width: 100%;
        box-sizing: border-box;
    }

    form {
        padding: 1rem;
    }
    .form-group input[type="text"],
    .form-group input[type="date"],
    .form-group input[type="time"],
    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group select,
    .form-group textarea {
        width: calc(100% - 20px);
    }
    button[type="submit"], .button {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
        width: 100%;
        margin-top: 10px;
        margin-right: 0;
    }
    .button.secondary {
        margin-left: 0;
    }

    #userTable th, #userTable td {
        padding: 0.75rem 0.5rem;
        font-size: 0.85em;
    }
    #userTable select {
        font-size: 0.8em;
        padding: 3px;
    }
    #userTable .button.small {
        font-size: 0.75rem;
        padding: 4px 6px;
    }
}

#availabilityTable td.past-cell {
    background-color: #f0f0f0;
    cursor: not-allowed;
}

#availabilityTable td.past-cell:hover {
    background-color: #f0f0f0;
}

/* Hamburger Menu Styles */
.hamburger-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    color: var(--header-text-color);
    position: relative;
    z-index: 1001;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
}

.hamburger-menu:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.05);
}

.hamburger-menu i {
    font-size: 1.4em;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-menu.active {
    background: rgba(255,255,255,0.25);
}

.hamburger-menu.active i {
    transform: rotate(180deg);
}

/* Hamburger menu dentro del main-nav */
.hamburger-menu-nav {
    display: none; /* Oculto por defecto en desktop */
    align-items: center;
    justify-content: center;
    cursor: pointer;
    width: 100%;
    padding: 15px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    color: var(--header-text-color);
    margin-bottom: 15px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
}

.hamburger-menu-nav:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.02);
}

.hamburger-menu-nav i {
    font-size: 1.4em;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-menu-nav.active {
    background: rgba(255,255,255,0.25);
}

.hamburger-menu-nav.active i {
    transform: rotate(180deg);
}

/* Mostrar hamburger-menu-nav solo en móvil */
@media (max-width: 768px) {
    .hamburger-menu-nav {
        display: flex;
    }
}

/* Ocultar hamburger-menu del header en móvil si hay uno en el nav */
@media (max-width: 768px) {
    header .hamburger-menu {
        display: none;
    }
}

/* Overlay para móvil cuando el sidebar está abierto */
@media (max-width: 768px) {
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 998;
        backdrop-filter: blur(2px);
    }
    
    .sidebar-overlay.active {
        display: block;
        animation: fadeIn 0.3s ease;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Sidebar adjustments for responsive design */
@media (max-width: 768px) {
    .sidebar {
        padding-top: 0; /* Reset padding, handled by header */
    }
    .sidebar.active {
        box-shadow: 5px 0 15px rgba(0,0,0,0.4); /* Stronger shadow when open */
    }
    .sidebar-header {
        padding-top: 60px; /* Push content down below fixed header */
    }
}