/* === Sidebar === */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    z-index: 100;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
}

.brand-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
}

.nav-link:hover {
    background-color: #f0f1f5;
    color: var(--text-primary);
}

.nav-link.active {
    background-color: rgba(97, 97, 224, 0.1);
    color: var(--accent);
}

.nav-link.active svg {
    color: var(--accent);
}

.nav-link svg {
    flex-shrink: 0;
}

/* === Sidebar Overlay (mobile) === */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* === Topbar === */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 20px;
    z-index: 90;
    gap: 12px;
}

.topbar-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Hamburger (hidden on desktop) */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s;
}

.hamburger-btn:hover {
    color: var(--text-primary);
}

/* Topbar Right / User Dropdown */
.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-dropdown {
    position: relative;
}

.user-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 5px 12px;
    color: var(--text-primary);
    font-family: 'Figtree', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.user-dropdown-btn:hover {
    border-color: var(--border-hover);
}

.user-name {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 160px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    z-index: 200;
}

.user-dropdown-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 14px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: 'Figtree', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.15s;
}

.dropdown-item:hover {
    background-color: #f0f1f5;
}

/* === Main Content === */
.main-content {
    margin-left: var(--sidebar-width);
    padding-top: var(--topbar-height);
    min-height: 100vh;
}

.page-body {
    padding: 24px;
}

/* === Responsive: Tablet === */
@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .topbar {
        left: 200px;
    }

    .main-content {
        margin-left: 200px;
    }
}

/* === Responsive: Mobile === */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .topbar {
        left: 0;
    }

    .main-content {
        margin-left: 0;
    }

    .hamburger-btn {
        display: flex;
    }

    .page-body {
        padding: 16px;
    }
}