/* =================================
   SIDEBAR LAYOUT
   ================================= */

/* Main layout container */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: width var(--sidebar-transition);
    overflow: hidden;
}

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

/* Sidebar Header */
.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 70px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.sidebar-logo:hover {
    text-decoration: none;
}

.sidebar-logo img {
    height: 32px;
    width: auto;
    transition: var(--sidebar-transition);
}

.sidebar-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sidebar-text-active);
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--sidebar-transition);
}

.sidebar.collapsed .sidebar-logo-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Collapse Toggle Button */
.sidebar-toggle {
    background: none;
    border: none;
    color: var(--sidebar-text);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.sidebar.collapsed .sidebar-toggle .material-icons {
    transform: rotate(180deg);
}

/* Navigation */
.sidebar-nav {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav-section {
    margin-bottom: 8px;
}

.sidebar-nav-label {
    padding: 8px 20px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.5);
    white-space: nowrap;
    transition: opacity var(--sidebar-transition);
}

.sidebar.collapsed .sidebar-nav-label {
    opacity: 0;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: all 0.2s;
    gap: 12px;
    white-space: nowrap;
    position: relative;
}

.sidebar-nav-item:hover {
    background: var(--sidebar-hover-bg);
    color: var(--sidebar-text-active);
    text-decoration: none;
}

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

.sidebar-nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-color);
}

.sidebar-nav-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-nav-text {
    opacity: 1;
    transition: opacity var(--sidebar-transition);
}

.sidebar.collapsed .sidebar-nav-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

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

.sidebar.collapsed .sidebar-user-info {
    opacity: 0;
    width: 0;
}

.sidebar-user-name {
    font-weight: 500;
    color: var(--sidebar-text-active);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.875rem;
}

.sidebar-user-role {
    font-size: 0.7rem;
    color: var(--sidebar-text);
}

.sidebar-logout {
    width: 100%;
    justify-content: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-color: transparent;
    color: var(--sidebar-text);
}

.sidebar-logout:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--sidebar-text-active);
    border-color: transparent;
}

.sidebar.collapsed .sidebar-logout .btn-text {
    display: none;
}

.sidebar.collapsed .sidebar-logout {
    padding: 8px;
}

/* =================================
   MAIN CONTENT AREA
   ================================= */

.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--sidebar-transition);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--background-color);
}

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

/* Top Bar */
.topbar {
    height: var(--topbar-height);
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--text-primary);
    border-radius: var(--radius);
}

.mobile-menu-toggle:hover {
    background: var(--background-color);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Main Content */
.app-layout .main-content {
    flex: 1;
    padding: 24px;
}

.app-layout .main-content .container {
    max-width: 1200px;
    margin: 0 auto;
}

/* =================================
   MOBILE OVERLAY
   ================================= */

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

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

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

@media (max-width: 1024px) {
    .app-layout .main-content {
        padding: 20px;
    }
}

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

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

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

    .main-wrapper {
        margin-left: 0 !important;
    }

    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .topbar {
        padding: 0 16px;
    }

    .app-layout .main-content {
        padding: 16px;
    }

    /* Hide collapse button on mobile */
    .sidebar-toggle {
        display: none;
    }

    /* Always show full content on mobile sidebar */
    .sidebar .sidebar-logo-text,
    .sidebar .sidebar-nav-text,
    .sidebar .sidebar-user-info,
    .sidebar .sidebar-nav-label {
        opacity: 1 !important;
        width: auto !important;
    }

    .sidebar .sidebar-logout .btn-text {
        display: inline !important;
    }
}

@media (max-width: 480px) {
    .app-layout .main-content {
        padding: 12px;
    }

    .topbar {
        padding: 0 12px;
        height: 56px;
    }

    .topbar-title {
        font-size: 1.1rem;
    }
}

/* =================================
   DASHBOARD SPECIFIC STYLES
   ================================= */

.welcome-section {
    margin-bottom: 24px;
}

.welcome-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px 0;
}

.welcome-subtitle {
    color: var(--text-secondary);
    margin: 0;
}

.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.quick-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.quick-actions .material-icons {
    font-size: 18px;
}

/* Stats Grid Enhancement */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-background);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.stat-card-icon.primary {
    background: rgba(10, 37, 64, 0.1);
    color: var(--primary-color);
}

.stat-card-icon.success {
    background: rgba(0, 184, 148, 0.1);
    color: var(--success-color);
}

.stat-card-icon.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.stat-card-icon.info {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.stat-card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-card-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Section Headers */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* Continue Test CTA */
.continue-test-card {
    background: linear-gradient(135deg, var(--primary-color), #1a4a7a);
    color: white;
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.continue-test-info h3 {
    margin: 0 0 4px 0;
    font-size: 1rem;
    font-weight: 600;
}

.continue-test-info p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.875rem;
}

.continue-test-card .btn {
    background: white;
    color: var(--primary-color);
    border: none;
}

.continue-test-card .btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

@media (max-width: 480px) {
    .continue-test-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .continue-test-card .btn {
        width: 100%;
    }
}

/* =================================
   DARK MODE ADJUSTMENTS FOR SIDEBAR
   ================================= */

[data-theme="dark"] .sidebar {
    border-right: 1px solid var(--border-color);
}

[data-theme="dark"] .sidebar-header {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .sidebar-footer {
    border-top-color: var(--border-color);
}

[data-theme="dark"] .sidebar-logo-text {
    color: #ffffff;
    text-shadow: 0 0 1px rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .topbar-right img {
    filter: brightness(1.3) contrast(1.1);
}

[data-theme="dark"] .stat-card-icon.primary {
    background: rgba(30, 58, 95, 0.4);
    color: #60a5fa;
}

[data-theme="dark"] .stat-card-icon.success {
    background: rgba(0, 217, 166, 0.15);
}

[data-theme="dark"] .stat-card-icon.warning {
    background: rgba(251, 191, 36, 0.15);
}

[data-theme="dark"] .stat-card-icon.info {
    background: rgba(96, 165, 250, 0.15);
}

[data-theme="dark"] .continue-test-card {
    background: linear-gradient(135deg, #1e3a5f, #2d4a6f);
}

/* Theme toggle in topbar */
.topbar-right .theme-toggle {
    margin-left: 8px;
}