.sidebar {
    width: 300px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    padding: 0 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 200;
}
.logo-area {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    background-color: var(--bg-sidebar);
    z-index: 5;
    padding: 24px 0 16px 0;
    margin-bottom: 8px;
}
.logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--logo-color);
    text-decoration: none;
}
.logo span { color: var(--accent); }
.sidebar-theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
    transition: 0.2s;
}
.sidebar-theme-toggle:hover { color: var(--accent); }

.nav-scrollable { flex: 1; display: flex; flex-direction: column; padding-bottom: 20px; }
.user-card-fixed {
    position: sticky;
    bottom: 0;
    background-color: var(--bg-sidebar);
    padding: 12px 0 24px 0;
    margin-top: auto;
    border-top: 1px solid var(--border-light);
    z-index: 5;
}
.user-card {
    background: var(--user-card-bg);
    border-radius: 18px;
    padding: 16px;
    margin-bottom: 12px;
    position: relative;
}
.tablet-balance-widget, .mobile-balance-widget {
    display: none;
    background: var(--balance-bg);
    border-radius: 40px;
    padding: 10px 16px;
    border: 1px solid var(--balance-border);
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
}
.tablet-balance-amount, .mobile-balance-amount { font-weight: 700; font-size: 18px; color: var(--text-primary); }
.tablet-btn-sm, .mobile-btn-sm {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 40px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
}
.tablet-btn-sm:hover, .mobile-btn-sm:hover { background: var(--accent); color: white; }

.user-info { display: flex; align-items: center; gap: 12px; }
.avatar {
    width: 48px; height: 48px;
    background: var(--avatar-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-weight: 600;
    font-size: 20px;
    border: 1.5px solid var(--avatar-border);
    cursor: pointer;
    transition: 0.2s;
}
.avatar:hover { border-color: var(--accent); }
.user-details .name { font-weight: 600; color: var(--text-primary); }
.user-details .email { font-size: 13px; color: var(--text-secondary); }

.menu-dots {
    margin-left: auto;
    font-size: 22px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    transition: 0.2s;
}
.menu-dots:hover { color: var(--accent); }

.dropdown-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: var(--dropdown-bg);
    border-radius: 16px;
    box-shadow: 0 12px 28px var(--shadow-heavy);
    min-width: 220px;
    padding: 8px 0;
    border: 1px solid var(--popup-border);
    display: none;
    z-index: 100;
}
.dropdown-menu.show { display: block; }
.dropdown-item {
    padding: 10px 18px;
    color: var(--text-primary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
}
.dropdown-item i { width: 20px; color: var(--accent); }
.dropdown-item:hover { background: var(--dropdown-item-hover); color: var(--text-primary); }
.dropdown-divider { height: 1px; background: var(--popup-border); margin: 6px 0; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    color: var(--nav-item-color);
    font-weight: 500;
    transition: 0.2s;
    cursor: pointer;
    text-decoration: none;
}
.nav-item i { width: 22px; font-size: 1.2rem; color: var(--text-secondary); }
.nav-item:hover { background-color: var(--nav-item-hover-bg); color: var(--text-primary); }
.nav-item.active { background-color: var(--nav-item-active-bg); color: var(--accent); }
.nav-item.active i { color: var(--accent); }

.sidebar-section-title {
    padding: 12px 12px 6px 12px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-top: 8px;
}

@media (max-width: 1001px) {
    .sidebar { width: 280px; }
}
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        transform: translateX(-100%);
        box-shadow: 0 0 30px rgba(0,0,0,0.5);
        width: 280px;
        z-index: 1000;
    }
    .sidebar.open { transform: translateX(0); }
    .tablet-balance-widget { display: none; }
    .mobile-balance-widget { display: flex; }
}
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}
@media (max-width: 768px) {
    .sidebar-overlay.show { display: block; }
}