/**
 * SQE2 Test Prep Platform - Main Stylesheet
 *
 * Unified styles for all three portals (Learner, Admin, Grader).
 * Based on BARBRI brand guidelines and pe-b2b-prototype patterns.
 */

/* Import CSS Variables */
@import url('variables.css');

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;500;600;700&family=Bitter:wght@400;500;600;700&display=swap');

/* ===========================================
   RESET & BASE
   =========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-page);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    color: var(--color-primary);
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

/* ===========================================
   ACCESSIBILITY
   =========================================== */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    z-index: 10000;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 var(--radius-default) 0;
}

.skip-link:focus {
    top: 0;
}

/* Global Focus Styles */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* Material Symbols */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: 300;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
}

/* ===========================================
   TOP HEADER BAR
   =========================================== */

.top-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-bg-card);
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    z-index: var(--z-dropdown);
}

.main-container {
    padding-top: var(--header-height);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: var(--radius-default);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: background-color 0.2s;
    padding: 0;
}

.icon-btn .material-symbols-outlined {
    font-size: 24px;
}

.icon-btn:hover {
    background-color: var(--color-bg-hover);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 12px;
}

.brand-logo img {
    height: 24px;
    width: auto;
}

.brand-logo-product {
    font-family: var(--font-family-primary);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
}

.header-center {
    flex: 1;
    max-width: 760px;
    margin: 0 24px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* App Switcher */
.app-switcher-container {
    position: relative;
}

.app-switcher-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 360px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 300;
}

.app-switcher-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.app-switcher-section {
    padding: 12px;
}

.app-switcher-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 8px 8px;
}

.app-switcher-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.app-switcher-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-default);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.app-switcher-item:hover {
    background: var(--color-bg-hover);
    text-decoration: none;
}

.app-switcher-item.active {
    background: var(--color-bg-hover);
}

.app-switcher-item .app-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border-radius: var(--radius-default);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.app-switcher-item .app-icon .material-symbols-outlined {
    font-size: 20px;
}

.app-switcher-item .app-item-text {
    flex: 1;
}

.app-switcher-item .app-item-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
}

.app-switcher-item .app-item-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.app-switcher-item > .material-symbols-outlined {
    color: var(--color-text-muted);
    font-size: 20px;
}

.app-switcher-footer {
    padding: 12px;
    border-top: var(--border-width-thin) solid var(--color-border-light);
}

.app-switcher-feedback {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: var(--radius-default);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: background 0.15s;
}

.app-switcher-feedback:hover {
    background: var(--color-bg-hover);
    text-decoration: none;
}

.app-switcher-feedback .material-symbols-outlined {
    font-size: 20px;
    color: var(--color-warning);
}

.app-icon-hub {
    background: var(--color-info) !important;
}

.app-icon-bar {
    background: #8B0000 !important;
}

.app-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

/* ===========================================
   HELP MENU
   =========================================== */

.help-menu-container {
    position: relative;
}

.help-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 300;
    padding: 8px 0;
}

.help-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

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

.dropdown-item .material-symbols-outlined {
    font-size: 20px;
    color: var(--color-text-secondary);
}

/* ===========================================
   USER AVATAR SMALL
   =========================================== */

.user-avatar-small {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* User Menu */
.user-menu,
.user-menu-container {
    position: relative;
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: 8px 0;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    background: none;
    border: none;
    border-radius: var(--radius-default);
    cursor: pointer;
    transition: background 0.2s;
}

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

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.user-name {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-primary);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 300;
}

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

.user-dropdown-header {
    padding: 16px;
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
}

.user-dropdown-name {
    display: block;
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
}

.user-dropdown-email {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.user-dropdown-item:hover {
    background: var(--color-bg-hover);
    text-decoration: none;
}

.user-dropdown-item .material-symbols-outlined {
    font-size: 20px;
    color: var(--color-text-secondary);
}

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

.sidebar {
    width: var(--sidebar-width);
    background: var(--color-bg-card);
    border-right: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: var(--header-height);
    bottom: 0;
    overflow-y: auto;
    transition: transform 0.3s ease, width 0.3s ease;
    z-index: 50;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
}

.nav-item {
    display: block;
    margin-bottom: 2px;
}

.nav-item > a {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.15s ease;
    position: relative;
    font-weight: 400;
}

.nav-item > a:hover {
    background-color: var(--color-bg-hover);
}

.nav-item.active > a {
    background-color: #F0F0F0;
    color: var(--color-text-primary);
    font-weight: 600;
}

.nav-icon {
    flex-shrink: 0;
    margin-right: 12px;
    font-size: 20px;
}

.nav-text {
    flex: 1;
    font-size: 14px;
}

.nav-chevron {
    flex-shrink: 0;
    transition: transform 0.2s ease;
    font-size: 20px;
    margin-left: auto;
}

.nav-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: 12px 0;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 8px;
    border-top: 1px solid var(--color-border-light);
}

/* Scrollable Wrapper */
.scrollable-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left 0.3s ease;
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: var(--color-bg-default);
}

/* Sidebar collapsed state */
html.sidebar-collapsed .sidebar {
    transform: translateX(-100%);
}

html.sidebar-collapsed .scrollable-wrapper {
    margin-left: 0;
}

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

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

.main-content {
    flex: 1;
    padding: var(--space-4);
}

.content-header {
    margin-bottom: var(--space-4);
}

.content-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 600;
    margin-bottom: 4px;
}

.content-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

/* ===========================================
   BUTTONS
   =========================================== */

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: #0D1F3C;
    color: white;
    border: none;
    border-radius: var(--radius-default);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #1A2F4D;
    color: white;
    text-decoration: none;
}

.btn-primary:active {
    background: #0A1829;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: var(--border-width-thin) solid var(--color-border-dark);
    border-radius: var(--radius-default);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
    text-decoration: none;
}

/* ===========================================
   CHIPS
   =========================================== */

.chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: var(--color-bg-hover);
    color: var(--color-text-secondary);
}

.chip-sm {
    padding: 2px 8px;
    font-size: var(--font-size-xs);
}

.chip-neutral {
    background: var(--color-bg-hover);
    color: var(--color-text-secondary);
}

/* Status Chips */
.chip-status-not_started {
    background: var(--color-bg-hover);
    color: var(--color-text-secondary);
}

.chip-status-in_progress {
    background: var(--color-info-light);
    color: var(--color-info);
}

.chip-status-complete {
    background: var(--color-success-light);
    color: var(--color-success);
}

.chip-status-past_due {
    background: var(--color-error-light);
    color: var(--color-error);
}

/* ===========================================
   STATS CARDS
   =========================================== */

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.stat-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ===========================================
   INFO BANNER
   =========================================== */

.info-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-info-light);
    border-radius: var(--radius-default);
    margin-bottom: var(--space-4);
}

.info-banner .material-symbols-outlined {
    color: var(--color-info);
    flex-shrink: 0;
    font-size: 20px;
}

.info-banner-content {
    flex: 1;
    font-size: var(--font-size-base);
}

.info-banner strong {
    display: block;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

/* ===========================================
   DASHBOARD SECTIONS
   =========================================== */

.dashboard-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.section-header h2 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
}

.section-link {
    font-size: var(--font-size-base);
    font-weight: 600;
}

/* ===========================================
   TASK LIST
   =========================================== */

.task-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.task-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg-hover);
    border-radius: var(--radius-default);
}

.task-icon {
    font-size: 24px;
    color: var(--color-text-secondary);
}

.task-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.task-title {
    font-weight: 600;
    color: var(--color-text-primary);
}

.task-duration {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===========================================
   UPCOMING LIST
   =========================================== */

.upcoming-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.upcoming-item {
    display: flex;
    gap: 16px;
    padding: 12px;
    background: var(--color-bg-hover);
    border-radius: var(--radius-default);
}

.upcoming-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 48px;
}

.date-day {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.date-num {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.upcoming-info {
    flex: 1;
}

.upcoming-title {
    display: block;
    font-weight: 600;
    color: var(--color-text-primary);
}

.upcoming-time {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ===========================================
   DATA TABLE
   =========================================== */

.data-table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
}

.data-table th {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.data-table tbody tr:hover {
    background: var(--color-bg-hover);
}

/* Progress Bar Mini */
.progress-bar-mini {
    display: inline-block;
    width: 60px;
    height: 6px;
    background: var(--color-border-light);
    border-radius: var(--radius-full);
    margin-right: 8px;
    vertical-align: middle;
}

.progress-bar-mini .progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

/* ===========================================
   GRADING QUEUE
   =========================================== */

.grading-queue {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.queue-item {
    background: var(--color-bg-hover);
    border-radius: var(--radius-default);
    padding: 16px;
}

.queue-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.queue-item-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.queue-item-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    margin: 0 0 12px 0;
}

.queue-item-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.meta-item .material-symbols-outlined {
    font-size: 18px;
}

.queue-item-actions {
    display: flex;
    justify-content: flex-end;
}

/* ===========================================
   LOGIN PAGE
   =========================================== */

.login-page {
    min-height: 100vh;
    background: var(--color-bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    max-width: 280px;
    height: auto;
    margin-bottom: 24px;
}

.login-logo-text {
    margin-bottom: 24px;
}

.login-logo-text .logo-barbri {
    display: block;
    font-family: 'Bitter', serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.login-logo-text .logo-product {
    display: block;
    font-family: var(--font-family-primary);
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.login-header h1 {
    font-family: 'Bitter', serif;
    font-size: 40px;
    font-weight: 600;
    color: var(--color-primary);
    margin: 0;
}

.required {
    color: #DE350B;
}

.required-note {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0 0 20px 0;
}

.required-note::before {
    content: '*';
    color: #DE350B;
    margin-right: 4px;
}

.login-success {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #E3FCEF;
    border: 1px solid #36B37E;
    border-radius: var(--radius-default);
    padding: 12px 16px;
    margin-bottom: 24px;
    color: #006644;
    font-size: 14px;
}

.login-success .material-symbols-outlined {
    font-size: 20px;
    color: #36B37E;
}

.login-error {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #FFEBE6;
    border: 1px solid #FF5630;
    border-radius: var(--radius-default);
    padding: 12px 16px;
    margin-bottom: 24px;
    color: #BF2600;
    font-size: 14px;
}

.login-error .material-symbols-outlined {
    font-size: 20px;
    color: #FF5630;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.login-form .form-group input[type="email"],
.login-form .form-group input[type="password"] {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    font-family: var(--font-family-primary);
    border: var(--border-width-thin) solid var(--color-border-default);
    border-radius: var(--radius-default);
    background: #FAFBFC;
    transition: border-color 0.2s, background-color 0.2s;
}

.login-form .form-group input[type="email"]:focus,
.login-form .form-group input[type="password"]:focus {
    outline: none;
    border-color: #0052CC;
    background: var(--color-bg-card);
}

.login-form .form-group input[type="email"]:hover,
.login-form .form-group input[type="password"]:hover {
    background: var(--color-bg-card);
}

.form-group-checkbox {
    margin-bottom: 24px;
}

.form-group-checkbox .checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--color-text-muted);
}

.form-group-checkbox .checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #0052CC;
    cursor: pointer;
}

.form-group-checkbox .checkbox-text {
    user-select: none;
}

.login-btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-family-primary);
    border: none;
    border-radius: var(--radius-default);
    cursor: pointer;
    background: #0D1F3C;
    color: #fff;
    transition: background-color 0.2s;
}

.login-btn:hover {
    background: #1A2F4D;
}

.login-btn:active {
    background: #0A1829;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ===========================================
   TOAST NOTIFICATIONS
   =========================================== */

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--color-text-primary);
    color: white;
    padding: 12px 16px;
    border-radius: var(--radius-default);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: var(--z-toast);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s, transform 0.3s;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-success {
    background: var(--color-success);
}

.toast-error {
    background: var(--color-error);
}

.toast-warning {
    background: var(--color-warning);
    color: var(--color-text-primary);
}

.toast-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
}

.toast-close .material-symbols-outlined {
    font-size: 18px;
}

/* ===========================================
   HEADER SEARCH BAR
   =========================================== */

.search-bar {
    display: flex;
    align-items: center;
    background: var(--color-bg-hover);
    border-radius: var(--radius-default);
    padding: 8px 12px;
    gap: 8px;
    position: relative;
    width: 100%;
    max-width: 480px;
}

.search-bar .material-symbols-outlined {
    color: var(--color-text-secondary);
    flex-shrink: 0;
    font-size: 20px;
}

.search-bar input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-family: var(--font-family-primary);
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-primary);
}

.search-bar input::placeholder {
    color: var(--color-text-secondary);
    font-weight: 400;
}

#header-search-container {
    position: relative;
}

.search-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    min-width: 400px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 300;
    max-height: 400px;
    overflow-y: auto;
}

.search-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-results {
    padding: 8px 0;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
    color: inherit;
}

.search-result-item:hover {
    background: var(--color-bg-hover);
}

.search-result-icon {
    color: var(--color-text-secondary);
}

.search-result-content {
    flex: 1;
}

.search-result-title {
    font-weight: 500;
    color: var(--color-text-primary);
}

.search-result-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.search-no-results {
    padding: 24px 16px;
    text-align: center;
    color: var(--color-text-muted);
}

/* ===========================================
   STUDY STATS CARDS
   =========================================== */

.study-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.study-stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    flex: 1;
}

.study-stat-icon {
    width: 48px;
    height: 48px;
    background: var(--color-info-light);
    border-radius: var(--radius-default);
    display: flex;
    align-items: center;
    justify-content: center;
}

.study-stat-icon .material-symbols-outlined {
    font-size: 24px;
    color: var(--color-info);
}

.study-stat-content {
    display: flex;
    flex-direction: column;
}

.study-stat-value {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
}

.study-stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.study-stat-goal {
    margin-left: auto;
    text-align: right;
}

.goal-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    display: block;
    margin-bottom: 4px;
}

.goal-progress {
    width: 100px;
    height: 6px;
    background: var(--color-border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.goal-progress-fill {
    height: 100%;
    background: var(--color-info);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

/* ===========================================
   WEEK SECTION (Collapsible)
   =========================================== */

.week-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    overflow: hidden;
}

.week-section.collapsed .week-content {
    display: none;
}

.week-section.expanded .week-content {
    display: block;
}

button.week-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 16px 20px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: background 0.15s;
}

button.week-header:hover {
    background: var(--color-bg-hover);
}

.week-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.week-chevron {
    font-size: 24px;
    color: var(--color-text-secondary);
    transition: transform 0.2s ease;
}

.week-section.expanded .week-chevron {
    transform: rotate(0deg);
}

.week-section.collapsed .week-chevron {
    transform: rotate(-90deg);
}

.week-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
    color: var(--color-text-primary);
}

.week-date-range {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.week-completion-badge {
    display: flex;
    align-items: baseline;
    gap: 2px;
    background: var(--color-bg-hover);
    padding: 6px 12px;
    border-radius: var(--radius-full);
}

.completion-count {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
}

.completion-total {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.week-content {
    padding: 0 20px 20px;
}

/* ===========================================
   TASK LIST
   =========================================== */

.task-list {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-default);
    overflow: hidden;
}

.task-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-light);
    transition: background 0.15s;
}

.task-row:last-child {
    border-bottom: none;
}

.task-row:hover {
    background: var(--color-bg-hover);
}

.task-row.task-complete {
    background: var(--color-bg-default);
}

.task-row.task-complete .task-title {
    color: var(--color-text-muted);
}

.task-type {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-hover);
    border-radius: var(--radius-default);
}

.task-type-icon {
    font-size: 20px;
    color: var(--color-text-secondary);
}

.task-info {
    flex: 1;
    min-width: 0;
}

.task-title {
    display: block;
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    margin-bottom: 4px;
}

.task-title:hover {
    color: var(--color-link);
    text-decoration: underline;
}

.task-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.task-topic {
    color: var(--color-text-muted);
}

.task-duration {
    color: var(--color-text-muted);
}

.task-status {
    flex-shrink: 0;
}

.task-action {
    flex-shrink: 0;
    width: 100px;
    text-align: right;
}

.task-check {
    font-size: 24px;
    color: var(--color-success);
}

/* Small buttons for task actions */
.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

/* ===========================================
   TASK PAGINATION
   =========================================== */

.task-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 0;
    margin-top: 16px;
    border-top: 1px solid var(--color-border-light);
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-default);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all 0.15s;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-border-default);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-page {
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-default);
    cursor: pointer;
}

.pagination-page:hover {
    background: var(--color-bg-hover);
}

.pagination-page.active {
    background: var(--color-primary);
    color: white;
    font-weight: 600;
}

/* ===========================================
   MY ASSIGNMENTS PAGE
   =========================================== */

/* Stats Cards */
.assignments-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-hover);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.stat-card-icon .material-symbols-outlined {
    font-size: 24px;
}

.stat-card-content {
    display: flex;
    flex-direction: column;
}

.stat-card-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.stat-card-subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Assignment Tabs */
.assignments-tabs {
    display: flex;
    align-items: center;
    gap: 0;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 24px;
}

.assignments-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.15s;
}

.assignments-tab:hover {
    color: var(--color-text-primary);
    text-decoration: none;
}

.assignments-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--color-error);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

/* Search and Filter Bar */
.search-filters-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.search-input-wrapper {
    flex: 1;
    max-width: 400px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper .material-symbols-outlined {
    position: absolute;
    left: 12px;
    color: var(--color-text-muted);
    font-size: 20px;
}

.search-input-wrapper input {
    width: 100%;
    height: 40px;
    padding: 0 12px 0 40px;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-default);
    font-size: var(--font-size-base);
    background: var(--color-bg-card);
    transition: border-color 0.15s;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.filters-btn {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Week Header Bar */
.week-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.week-header-bar .week-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.week-header-bar h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.week-header-bar .week-date-range {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.week-header-bar .week-header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.week-progress {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Week Actions Dropdown */
.week-actions-menu {
    position: relative;
}

.week-actions-btn {
    padding: 6px 8px;
}

.week-actions-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    min-width: 200px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    display: none;
}

.week-actions-menu:hover .week-actions-dropdown,
.week-actions-dropdown.show {
    display: block;
}

.week-actions-dropdown .dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.week-actions-dropdown .dropdown-item:hover {
    background: var(--color-bg-hover);
    text-decoration: none;
}

.week-actions-dropdown .dropdown-item .material-symbols-outlined {
    font-size: 20px;
    color: var(--color-text-secondary);
}

/* Task Table */
.task-table {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    overflow: hidden;
}

.task-table-header {
    display: grid;
    grid-template-columns: 60px 1fr 40px 140px 100px 120px 40px;
    gap: 8px;
    padding: 12px 20px;
    background: var(--color-bg-hover);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.task-row {
    display: grid;
    grid-template-columns: 60px 1fr 40px 140px 100px 120px 40px;
    gap: 8px;
    padding: 16px 20px;
    align-items: center;
    border-bottom: 1px solid var(--color-border-light);
    transition: background 0.15s;
}

.task-row:last-child {
    border-bottom: none;
}

.task-row:hover {
    background: var(--color-bg-hover);
}

.task-row.task-complete {
    background: rgba(0, 0, 0, 0.02);
}

.task-row.task-complete .task-title-link {
    color: var(--color-text-muted);
}

.task-row.task-past-due {
    background: var(--color-error-light);
}

/* Task Columns */
.task-col-type {
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-type-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: var(--color-bg-hover);
}

.task-type-icon .material-symbols-outlined {
    font-size: 20px;
}

/* Task type colors */
.task-type-video {
    background: #E3F2FD;
    color: #1976D2;
}

.task-type-quiz {
    background: #FFF3E0;
    color: #F57C00;
}

.task-type-essay {
    background: #F3E5F5;
    color: #7B1FA2;
}

.task-type-live {
    background: #E8F5E9;
    color: #388E3C;
}

.task-col-title {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.task-title-link {
    font-weight: 500;
    color: var(--color-link);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.task-title-link:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.task-subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.task-col-notes {
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-notes-btn,
.task-info-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: var(--radius-default);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all 0.15s;
}

.task-notes-btn:hover,
.task-info-btn:hover {
    background: var(--color-bg-active);
    color: var(--color-text-primary);
}

.task-notes-btn .material-symbols-outlined,
.task-info-btn .material-symbols-outlined {
    font-size: 20px;
}

.task-col-topic {
    display: flex;
    align-items: center;
}

.topic-chip {
    display: inline-block;
    padding: 4px 10px;
    background: var(--color-bg-hover);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.task-col-duration {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.task-col-status {
    display: flex;
    align-items: center;
}

.task-col-info {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Status Chips */
.status-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.status-not_started {
    background: var(--color-bg-hover);
    color: var(--color-text-secondary);
}

.status-in_progress {
    background: #E3F2FD;
    color: #1976D2;
}

.status-complete {
    background: var(--color-success-light);
    color: var(--color-success);
}

.status-past_due {
    background: var(--color-error-light);
    color: var(--color-error);
}

/* Compact Task Table (for accordions) */
.task-table.compact .task-row {
    grid-template-columns: 50px 1fr 80px 100px;
    padding: 12px 16px;
}

.task-table.compact .task-table-header {
    display: none;
}

/* Past Due Section */
.past-due-section {
    margin-bottom: 24px;
}

.past-due-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--color-error-light);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.past-due-header .material-symbols-outlined {
    font-size: 24px;
    color: var(--color-error);
}

.past-due-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-error);
    margin: 0;
}

.past-due-section .task-table {
    border-top: none;
    border-color: var(--color-error);
}

/* Entire Course - Week Accordions */
.entire-course-section {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.week-accordion {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    margin-bottom: -1px;
}

.week-accordion:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.week-accordion:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.week-accordion.current-week {
    border-color: var(--color-primary);
    z-index: 1;
}

.week-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 20px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.week-accordion-header:hover {
    background: var(--color-bg-hover);
}

.week-accordion-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.week-accordion-chevron {
    font-size: 20px;
    color: var(--color-text-secondary);
    transition: transform 0.2s;
}

.week-accordion[aria-expanded="true"] .week-accordion-chevron {
    transform: rotate(90deg);
}

.week-accordion-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-primary);
}

.current-week-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.week-accordion-right {
    display: flex;
    align-items: center;
}

.week-accordion-progress {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.week-accordion-content {
    padding: 0 20px 20px;
    border-top: 1px solid var(--color-border-light);
}

.week-accordion-content[hidden] {
    display: none;
}

.week-placeholder {
    padding: 20px;
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Past week styling */
.week-accordion.past-week .week-accordion-title {
    color: var(--color-text-secondary);
}

/* More Practice - Empty State */
.more-practice-section {
    margin-top: 24px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    background: var(--color-bg-card);
    border: 1px dashed var(--color-border-default);
    border-radius: var(--radius-lg);
    text-align: center;
}

.empty-state-icon {
    font-size: 48px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
}

.empty-state p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
    max-width: 400px;
}

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

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

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

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

    .user-name {
        display: none;
    }
}