/* ===== SIDEBAR REDISEÑADO COMPLETAMENTE ===== */

:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --sidebar-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-bg-primary: #1e40af;
    --sidebar-bg-secondary: #3b82f6;
    --sidebar-text-primary: rgba(255, 255, 255, 0.9);
    --sidebar-text-secondary: rgba(255, 255, 255, 0.7);
    --sidebar-hover-bg: rgba(255, 255, 255, 0.1);
    --sidebar-active-bg: rgba(255, 255, 255, 0.15);
    --sidebar-border: rgba(255, 255, 255, 0.1);
    --sidebar-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Contenedor principal del sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--sidebar-bg-primary) 0%, var(--sidebar-bg-secondary) 100%);
    color: var(--sidebar-text-primary);
    transition: var(--sidebar-transition);
    z-index: 1000;
    box-shadow: var(--sidebar-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-closed {
    width: var(--sidebar-collapsed-width);
}

/* Header del sidebar */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--sidebar-border);
    min-height: 70px;
    flex-shrink: 0;
}

.sidebar-logo-container {
    display: flex;
    align-items: center;
    flex: 1;
    overflow: hidden;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--sidebar-text-primary);
    cursor: pointer;
    transition: var(--sidebar-transition);
    min-width: 0;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    transition: var(--sidebar-transition);
}

.logo-text {
    margin-left: 12px;
    font-weight: 600;
    font-size: 1.25rem;
    white-space: nowrap;
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
    min-width: 0;
}

.sidebar-closed .logo-text {
    opacity: 0;
    visibility: hidden;
    width: 0;
    margin-left: 0;
}

/* Botón de toggle */
.sidebar-toggle-btn {
    background: var(--sidebar-hover-bg);
    border: none;
    color: var(--sidebar-text-primary);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--sidebar-transition);
    flex-shrink: 0;
}

.sidebar-toggle-btn:hover {
    background: var(--sidebar-active-bg);
    transform: scale(1.05);
}

.sidebar-toggle-btn i {
    font-size: 14px;
    transition: var(--sidebar-transition);
}

/* Contenido del sidebar */
.sidebar-content {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-content::-webkit-scrollbar {
    width: 4px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--sidebar-border);
    border-radius: 2px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: var(--sidebar-hover-bg);
}

/* Secciones de navegación */
.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sidebar-text-secondary);
    padding: 0 1rem;
    margin-bottom: 0.75rem;
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
}

.sidebar-closed .nav-section-title {
    opacity: 0;
    visibility: hidden;
    height: 0;
    margin-bottom: 0;
    padding-top: 0;
    padding-bottom: 0;
}

/* Lista de navegación */
.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin-bottom: 2px;
    position: relative;
}

/* Enlaces de navegación */
.nav-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--sidebar-text-secondary);
    padding: 0.75rem 1rem;
    margin: 0 0.5rem;
    border-radius: 8px;
    position: relative;
    transition: var(--sidebar-transition);
    overflow: hidden;
    white-space: nowrap;
}

.sidebar-closed .nav-link {
    margin: 0 0.5rem;
    padding: 0.75rem;
    justify-content: center;
}

.nav-link:hover {
    color: var(--sidebar-text-primary);
    background: var(--sidebar-hover-bg);
    transform: translateX(2px);
}

.nav-item.active .nav-link {
    color: var(--sidebar-text-primary);
    background: var(--sidebar-active-bg);
    font-weight: 500;
}

.nav-item.active .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #fbbf24;
    border-radius: 0 2px 2px 0;
}

.sidebar-closed .nav-item.active .nav-link::before {
    left: 50%;
    top: auto;
    bottom: -2px;
    width: 20px;
    height: 3px;
    transform: translateX(-50%);
    border-radius: 2px 2px 0 0;
}

/* Iconos de navegación - Corrección general */
.nav-link i {
    font-size: 1.1rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.75rem;
    flex-shrink: 0;
    transition: var(--sidebar-transition);
    line-height: 1; /* Asegurar línea de altura consistente */
    vertical-align: middle; /* Alineación vertical */
}

.sidebar-closed .nav-link i {
    margin-right: 0;
    font-size: 1.2rem;
}

/* Texto de navegación */
.nav-text {
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-closed .nav-text {
    opacity: 0;
    visibility: hidden;
    width: 0;
}

/* Badges en navegación */
.nav-link .badge {
    margin-left: auto;
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
}

.sidebar-closed .nav-link .badge {
    opacity: 0;
    visibility: hidden;
    width: 0;
}

/* Footer del sidebar */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--sidebar-border);
    flex-shrink: 0;
}

.logout-btn {
    display: flex;
    align-items: center;
    width: 100%;
    background: var(--sidebar-hover-bg);
    border: none;
    color: var(--sidebar-text-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--sidebar-transition);
    overflow: hidden;
    white-space: nowrap;
}

.logout-btn:hover {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-primary);
    transform: translateY(-1px);
}

.logout-btn i {
    font-size: 1rem;
    margin-right: 0.75rem;
    flex-shrink: 0;
    transition: var(--sidebar-transition);
}

.sidebar-closed .logout-btn i {
    margin-right: 0;
}

.logout-btn span {
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
}

.sidebar-closed .logout-btn span {
    opacity: 0;
    visibility: hidden;
    width: 0;
}

/* Tooltip para sidebar colapsado */
.sidebar-closed .nav-link {
    position: relative;
}

.sidebar-closed .nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 15px);
    top: 50%;
    transform: translateY(-50%);
    background: #374151;
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--sidebar-transition);
    z-index: 1001;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sidebar-closed .nav-link::before {
    content: '';
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    border: 4px solid transparent;
    border-right-color: #374151;
    opacity: 0;
    visibility: hidden;
    transition: var(--sidebar-transition);
    z-index: 1001;
}

.sidebar-closed .nav-link:hover::after,
.sidebar-closed .nav-link:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Animaciones especiales */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.nav-link {
    animation: slideIn 0.3s ease-out;
}

/* Estados especiales */
.nav-item.active .nav-link {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-item.active .nav-link i {
    color: #fbbf24;
}

/* Responsivo */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width) !important;
    }
    
    .sidebar-open {
        transform: translateX(0);
    }
    
    .sidebar-closed {
        width: var(--sidebar-width) !important;
    }
}

/* Ajustes para el contenido principal */
.main-content {
    margin-left: var(--sidebar-width);
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-content-expanded {
    margin-left: var(--sidebar-collapsed-width);
}

@media (max-width: 991px) {
    .main-content,
    .main-content-expanded {
        margin-left: 0 !important;
    }
}

/* Estados de carga */
.sidebar.loading {
    pointer-events: none;
}

.sidebar.loading .nav-link {
    opacity: 0.6;
}

/* Microinteracciones */
.nav-link:active {
    transform: scale(0.98);
}

.sidebar-toggle-btn:active {
    transform: scale(0.95);
}

/* Mejoras de accesibilidad */
.nav-link:focus {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

.logout-btn:focus {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* Personalización por rol */
.sidebar.admin-theme {
    background: linear-gradient(180deg, #1e40af 0%, #3b82f6 100%);
}

.sidebar.supervisor-theme {
    background: linear-gradient(180deg, #059669 0%, #10b981 100%);
}

.sidebar.student-theme {
    background: linear-gradient(180deg, #7c3aed 0%, #a855f7 100%);
}

/* NUEVO: Arreglo para badges en sidebar */
.nav-badge {
    margin-left: auto;
    opacity: 1;
    visibility: visible;
    transition: var(--sidebar-transition);
    font-size: 0.65rem;
    padding: 0.2rem 0.4rem;
    border-radius: 50px;
    font-weight: 600;
    line-height: 1;
    min-width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Cuando el sidebar está colapsado, ocultar badges */
.sidebar-closed .nav-badge {
    opacity: 0;
    visibility: hidden;
    width: 0;
    margin-left: 0;
}

/* Asegurar que el ícono mantenga su posición cuando hay badge */
.nav-link:has(.nav-badge) i {
    margin-right: 0.75rem;
}

.sidebar-closed .nav-link:has(.nav-badge) i {
    margin-right: 0;
}

/* Alternativa para navegadores que no soporten :has() */
.nav-link .fas + .nav-text + .nav-badge {
    margin-left: auto;
}

.sidebar-closed .nav-link .fas + .nav-text + .nav-badge {
    display: none;
}

/* Asegurar alineación correcta del contenido del nav-link */
.nav-link {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.sidebar-closed .nav-link {
    justify-content: center;
}

/* Tooltip específico para enlaces con badge */
.sidebar-closed .nav-link:has(.nav-badge):hover::after {
    content: attr(data-tooltip) " (" attr(data-count) ")";
}