/* ============================================
   SGTI - Sidebar Navy
   ============================================ */

.sidebar {
    width: 250px;
    background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-700) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 200;
    transition: var(--transition);
    box-shadow: 4px 0 20px rgba(10, 22, 40, 0.3);
}

.sidebar-header {
    padding: 28px 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo i {
    font-size: 1.8rem;
    color: var(--accent-blue);
}

.sidebar-subtitle {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Navigation */
.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.925rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1.05rem;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: white;
}

.nav-item.active {
    background: rgba(46, 134, 171, 0.2);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--accent-blue);
    border-radius: 0 4px 4px 0;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--danger-red);
    color: white;
    font-size: 0.7rem;
    min-width: 22px;
    text-align: center;
    padding: 2px 8px;
    animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.user-info > i {
    font-size: 1.6rem;
    color: rgba(255, 255, 255, 0.5);
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    display: block;
}

.user-role {
    font-size: 0.7rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-top: 2px;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: rgba(255, 255, 255, 0.6);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-logout:hover {
    background: var(--danger-red);
    color: white;
}

/* Sidebar collapsed */
.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .sidebar-subtitle,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .user-info div,
.sidebar.collapsed .badge {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .nav-item.active::before {
    left: -12px;
}

.sidebar.collapsed + .main-content {
    margin-left: 70px;
}

.sidebar.collapsed .sidebar-footer {
    justify-content: center;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0 !important;
    }
}