/* ============================================================
   GENERAL
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--color-gray-50);
    color: var(--color-gray-800);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    z-index: 1050;
    display: flex;
    flex-direction: column;
    transition: width var(--sidebar-transition), transform var(--sidebar-transition);
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    min-height: 64px;
}

.sidebar-brand-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex: 1;
    min-width: 0;
}

.sidebar-brand-link:hover {
    text-decoration: none;
}

.sidebar-logo-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    object-fit: contain;
}

.sidebar-brand {
    font-size: var(--text-lg);
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    transition: opacity var(--sidebar-transition);
}

.sidebar-brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-brand-icon svg {
    width: 18px;
    height: 18px;
    color: #fff;
}

/* Client logos in sidebar */
.sidebar-client-logo {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    object-fit: contain;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--sidebar-text);
    cursor: pointer;
    padding: var(--space-1);
    margin-left: auto;
    line-height: 1;
}

.sidebar-close:hover {
    color: #fff;
}

/* Navigation */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-3) 0;
}

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

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--color-gray-700);
    border-radius: 2px;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-section-title {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-gray-500);
    padding: var(--space-5) var(--space-5) var(--space-2);
    white-space: nowrap;
    transition: opacity var(--sidebar-transition);
}

.sidebar-item {
    padding: 0 var(--space-2);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    min-height: 40px;
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    color: var(--sidebar-text-hover);
    background: var(--sidebar-hover-bg);
}

.sidebar-item.active .sidebar-link {
    color: var(--sidebar-text-active);
    background: var(--sidebar-active-bg);
    border-left-color: var(--sidebar-active-border);
}

.sidebar-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.7;
}

.sidebar-item.active .sidebar-icon {
    opacity: 1;
}

.sidebar-text {
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity var(--sidebar-transition);
}

/* Client dot */
.sidebar-client-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--color-gray-500);
}

/* Sidebar footer (user info) */
.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-300);
}

.sidebar-user-info {
    flex: 1;
    overflow: hidden;
    transition: opacity var(--sidebar-transition);
}

.sidebar-user-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-300);
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-user-role {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
}

.sidebar-logout {
    color: var(--color-gray-500);
    padding: var(--space-1);
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-logout:hover {
    color: var(--color-danger);
}

/* Sidebar collapsed state (desktop) */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .sidebar-text,
.sidebar.collapsed .sidebar-section-title,
.sidebar.collapsed .sidebar-user-info {
    opacity: 0;
    pointer-events: none;
}

.sidebar.collapsed .sidebar-brand-link {
    justify-content: center;
}

.sidebar.collapsed .sidebar-link {
    justify-content: center;
    padding: var(--space-2);
    border-left-color: transparent;
}

.sidebar.collapsed .sidebar-user {
    justify-content: center;
    padding: var(--space-3);
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: var(--space-4);
}

/* ============================================================
   MOBILE TOPBAR
   ============================================================ */
.mobile-topbar {
    display: none;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: #ffffff;
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1030;
    padding: 0 var(--space-4);
    gap: var(--space-3);
}

.mobile-topbar-logo {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.mobile-topbar-brand {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-gray-900);
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--color-gray-600);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

/* Desktop toggle inside sidebar header area */
.desktop-toggle {
    display: none;
    position: fixed;
    top: var(--space-4);
    left: calc(var(--sidebar-width) + var(--space-4));
    z-index: 1040;
    transition: left var(--sidebar-transition);
}

.sidebar.collapsed ~ .main-content .desktop-toggle,
.sidebar-collapsed .desktop-toggle {
    left: calc(var(--sidebar-collapsed-width) + var(--space-4));
}

/* Backdrop */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    opacity: 0;
    transition: opacity var(--sidebar-transition);
}

.sidebar-backdrop.active {
    display: block;
    opacity: 1;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--sidebar-transition);
    padding: var(--space-8) var(--content-padding);
}

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

.content-wrapper {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

/* Page header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.page-subtitle {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-top: var(--space-1);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Desktop: show sidebar, show desktop toggle */
@media (min-width: 992px) {
    .desktop-toggle {
        display: flex;
    }

    .sidebar-backdrop {
        display: none !important;
    }
}

/* Mobile: hide sidebar, show topbar */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-close {
        display: block;
    }

    .mobile-topbar {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding-top: calc(var(--topbar-height) + var(--space-6));
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

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

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 575.98px) {
    .main-content {
        padding-left: var(--space-3);
        padding-right: var(--space-3);
    }
}