/* LMS Styles — bRRAIn Learn (Vector-First Design) */

/* ===== Learn Hero ===== */

.learn-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
    text-align: left;
}

.learn-hero--compact {
    padding: var(--space-xl) 0 var(--space-lg);
}

.learn-hero__title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.15;
}

.learn-hero__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===== Learn Sections ===== */

.learn-section {
    padding: var(--space-xl) 0;
}

.learn-section__title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.learn-link {
    color: var(--color-accent-cyan);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.learn-link:hover {
    border-bottom-color: var(--color-accent-cyan);
}

/* ===== Breadcrumb ===== */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-size: var(--text-sm);
}

.breadcrumb__link {
    color: var(--color-accent-cyan);
    text-decoration: none;
}

.breadcrumb__link:hover {
    text-decoration: underline;
}

.breadcrumb__sep {
    color: var(--color-text-tertiary);
}

.breadcrumb__current {
    color: var(--color-text-secondary);
}

/* ===== Badge (inline label) ===== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
    line-height: 1.5;
}

.badge--cyan {
    background: var(--color-accent-cyan-muted);
    color: var(--color-accent-cyan);
    border: 1px solid rgba(0, 235, 255, 0.25);
}

.badge--outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.badge--success {
    background: rgba(0, 200, 83, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(0, 200, 83, 0.25);
}

.badge--muted {
    background: var(--color-surface-2);
    color: var(--color-text-tertiary);
    border: 1px solid var(--color-border);
}

/* ===== Catalog Search ===== */

.catalog-search {
    position: relative;
    max-width: 480px;
    margin: var(--space-lg) auto 0;
}

.catalog-search__input {
    padding-left: 44px;
}

.catalog-search__icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    pointer-events: none;
}

/* ===== Catalog Layout ===== */

.catalog-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-lg);
}

@media (max-width: 768px) {
    .catalog-layout {
        grid-template-columns: 1fr;
    }
}

/* Sidebar Filters */

.catalog-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.catalog-filter__title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.catalog-filter__option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.catalog-filter__option:hover {
    color: var(--color-text-primary);
}

.catalog-filter__option input[type="checkbox"],
.catalog-filter__option input[type="radio"] {
    accent-color: var(--color-accent-cyan);
}

.catalog-filter__clear {
    align-self: flex-start;
}

/* Catalog Grid */

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

@media (max-width: 1024px) {
    .catalog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .catalog-grid {
        grid-template-columns: 1fr;
    }
}

.catalog-card {
    display: flex;
    flex-direction: column;
}

.catalog-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.catalog-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-cyan-muted);
    border-radius: var(--radius-sm);
}

.catalog-card__title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.catalog-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex: 1;
    margin-bottom: var(--space-md);
}

.catalog-card__meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.catalog-card__meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.catalog-card__cta {
    align-self: flex-start;
}

.catalog-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xl);
    color: var(--color-text-secondary);
}

/* ===== Path Flowchart ===== */

.path-flowchart {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-lg) 0;
    overflow-x: auto;
}

.path-flowchart__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-lg);
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-width: 160px;
    text-align: center;
    transition: border-color var(--transition-fast);
}

.path-flowchart__step--active {
    border-color: var(--color-accent-cyan);
    background: var(--color-accent-cyan-muted);
}

.path-flowchart__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-sm);
    color: var(--color-accent-cyan);
}

.path-flowchart__title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.path-flowchart__label {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.path-flowchart__arrow {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .path-flowchart {
        flex-direction: column;
    }
    .path-flowchart__arrow svg {
        transform: rotate(90deg);
    }
}

/* ===== Path Roles ===== */

.path-roles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.path-role__title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.path-role__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.path-role__subtitle {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.path-role__bullets {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-lg);
}

.path-role__bullets li {
    position: relative;
    padding-left: var(--space-md);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.path-role__bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
}

.path-role__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.path-role__duration {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

/* ===== Path Meta ===== */

.path-meta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    margin-top: var(--space-md);
    flex-wrap: wrap;
}

/* ===== FAQ Accordion ===== */

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.faq-item {
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-item[open] {
    border-color: var(--color-surface-5);
}

.faq-item__question {
    padding: var(--space-md);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-item__question::-webkit-details-marker {
    display: none;
}

.faq-item__question::after {
    content: '+';
    font-size: var(--text-lg);
    color: var(--color-accent-cyan);
    transition: transform var(--transition-fast);
}

.faq-item[open] .faq-item__question::after {
    content: '\2212';
}

.faq-item__answer {
    padding: 0 var(--space-md) var(--space-md);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Course Detail ===== */

/* Sticky Header */

.course-sticky-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.course-sticky-header--visible {
    transform: translateY(0);
}

.course-sticky-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    gap: var(--space-md);
}

.course-sticky-header__title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-sticky-header__meta {
    display: flex;
    gap: var(--space-md);
    flex-shrink: 0;
}

.course-sticky-header__item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* Course Stats */

.course-stats {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    margin: var(--space-lg) 0;
}

.course-stat {
    text-align: center;
}

.course-stat__value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-accent-cyan);
}

.course-stat__label {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

/* Module List */

.module-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.module-item {
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.module-item[open] {
    border-color: var(--color-surface-5);
}

.module-item__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    cursor: pointer;
    list-style: none;
}

.module-item__header::-webkit-details-marker {
    display: none;
}

.module-item__number {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-accent-cyan);
    text-transform: uppercase;
    min-width: 80px;
}

.module-item__name {
    font-weight: 500;
    color: var(--color-text-primary);
    flex: 1;
}

.module-item__meta {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.module-item__body {
    padding: 0 var(--space-md) var(--space-md);
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-md);
}

.module-item__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.module-item__lessons {
    list-style: none;
    padding: 0;
    margin: 0;
}

.module-item__lesson {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-surface-2);
}

.module-item__lesson:last-child {
    border-bottom: none;
}

.module-item__lesson-duration {
    margin-left: auto;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* Instructor Card */

.instructor-card {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.instructor-card__avatar {
    width: 80px;
    height: 80px;
    background: var(--color-accent-cyan-muted);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.instructor-card__name {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.instructor-card__title {
    font-size: var(--text-sm);
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-sm);
}

.instructor-card__bio {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Enrollment Modal ===== */

.learn-modal {
    background: transparent;
    border: none;
    padding: 0;
    max-width: 500px;
    width: 90%;
}

.learn-modal::backdrop {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.learn-modal__content {
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.learn-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.learn-modal__title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.learn-modal__close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--space-xs);
}

.learn-modal__close:hover {
    color: var(--color-text-primary);
}

.learn-modal__body {
    padding: var(--space-lg);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

.learn-modal__details {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0 0;
}

.learn-modal__details li {
    padding: var(--space-xs) 0;
    border-bottom: 1px solid var(--color-surface-2);
}

.learn-modal__footer {
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* ===== Lesson Viewer ===== */

.lesson-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 0;
    min-height: calc(100vh - 64px);
}

@media (max-width: 768px) {
    .lesson-layout {
        grid-template-columns: 1fr;
    }
}

.lesson-main {
    padding: var(--space-lg) var(--space-xl);
    max-width: 800px;
}

/* Lesson Progress */

.lesson-progress {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.lesson-progress__bar {
    flex: 1;
    height: 4px;
    background: var(--color-surface-3);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.lesson-progress__fill {
    height: 100%;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.lesson-progress__text {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    white-space: nowrap;
}

/* Lesson Content */

.lesson-content__title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.lesson-content__body {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.lesson-content__body h2 {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--space-lg) 0 var(--space-md);
}

.lesson-content__body h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--space-md) 0 var(--space-sm);
}

.lesson-content__body p {
    margin-bottom: var(--space-md);
}

.lesson-content__body ul,
.lesson-content__body ol {
    margin: 0 0 var(--space-md) var(--space-lg);
}

.lesson-content__body li {
    margin-bottom: var(--space-xs);
}

.lesson-content__body img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
}

/* Lesson Actions */

.lesson-actions {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.lesson-actions__mark-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

.lesson-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-lg);
}

.lesson-nav__btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

/* Lesson Sidebar */

.lesson-sidebar {
    background: var(--color-surface-1);
    border-left: 1px solid var(--color-border);
    padding: var(--space-lg) var(--space-md);
    overflow-y: auto;
    max-height: calc(100vh - 64px);
    position: sticky;
    top: 64px;
}

@media (max-width: 768px) {
    .lesson-sidebar {
        border-left: none;
        border-top: 1px solid var(--color-border);
        position: static;
        max-height: none;
    }
}

.lesson-sidebar__title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.lesson-sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lesson-sidebar__item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-sm);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: background var(--transition-fast);
}

.lesson-sidebar__item:hover {
    background: var(--color-surface-2);
}

.lesson-sidebar__item--current {
    background: var(--color-accent-cyan-muted);
    color: var(--color-accent-cyan);
}

.lesson-sidebar__item--completed {
    color: var(--color-text-tertiary);
}

.lesson-sidebar__number {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--color-surface-3);
    flex-shrink: 0;
}

.lesson-sidebar__item--current .lesson-sidebar__number {
    background: var(--color-accent-cyan);
    color: var(--color-bg);
}

.lesson-sidebar__name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lesson-sidebar__check {
    flex-shrink: 0;
}

/* ===== Exam Taker ===== */

.exam-layout {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 0;
    min-height: calc(100vh - 64px);
}

@media (max-width: 768px) {
    .exam-layout {
        grid-template-columns: 1fr;
    }
}

.exam-main {
    padding: var(--space-lg) var(--space-xl);
    max-width: 800px;
}

/* Exam Header */

.exam-header {
    margin-bottom: var(--space-xl);
}

.exam-header__title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.exam-header__meta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.exam-timer {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-surface-2);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--color-text-primary);
}

.exam-timer--warning {
    background: rgba(255, 23, 68, 0.15);
    color: var(--color-error);
    animation: pulse-warning 1s ease-in-out infinite;
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

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

.exam-progress-bar {
    height: 3px;
    background: var(--color-surface-3);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.exam-progress-bar__fill {
    height: 100%;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

/* Exam Question */

.exam-question {
    margin-bottom: var(--space-xl);
}

.exam-question__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.exam-question__number {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-cyan);
    text-transform: uppercase;
}

.exam-question__points {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.exam-question__text {
    font-size: var(--text-lg);
    color: var(--color-text-primary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

/* Exam Options (MC & T/F) */

.exam-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.exam-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.exam-option:hover {
    border-color: var(--color-surface-5);
    background: var(--color-surface-2);
}

.exam-option input[type="radio"] {
    display: none;
}

.exam-option input[type="radio"]:checked + .exam-option__marker {
    background: var(--color-accent-cyan);
    color: var(--color-bg);
    border-color: var(--color-accent-cyan);
}

.exam-option input[type="radio"]:checked ~ .exam-option__text {
    color: var(--color-text-primary);
}

.exam-option__marker {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.exam-option__text {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

/* Matching */

.exam-matching {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.exam-matching__row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.exam-matching__left {
    flex: 1;
    font-size: var(--text-base);
    color: var(--color-text-primary);
    padding: var(--space-sm);
    background: var(--color-surface-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.exam-matching__select {
    flex: 1;
}

/* Essay */

.exam-essay__textarea {
    min-height: 200px;
    resize: vertical;
}

.exam-essay__hint {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* Exam Nav */

.exam-nav {
    display: flex;
    justify-content: space-between;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* Exam Sidebar */

.exam-sidebar {
    background: var(--color-surface-1);
    border-left: 1px solid var(--color-border);
    padding: var(--space-lg) var(--space-md);
    position: sticky;
    top: 64px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
}

@media (max-width: 768px) {
    .exam-sidebar {
        border-left: none;
        border-top: 1px solid var(--color-border);
        position: static;
        max-height: none;
    }
}

.exam-sidebar__title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.exam-sidebar__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.exam-sidebar__item {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface-2);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.exam-sidebar__item:hover {
    border-color: var(--color-surface-5);
}

.exam-sidebar__item--current {
    border-color: var(--color-accent-cyan);
    background: var(--color-accent-cyan-muted);
    color: var(--color-accent-cyan);
}

.exam-sidebar__item--answered {
    background: rgba(0, 200, 83, 0.15);
    border-color: rgba(0, 200, 83, 0.3);
    color: var(--color-success);
}

.exam-sidebar__item--flagged {
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.exam-sidebar__legend {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.exam-sidebar__legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.exam-sidebar__dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.exam-sidebar__dot--current {
    background: var(--color-accent-cyan);
}

.exam-sidebar__dot--answered {
    background: var(--color-success);
}

.exam-sidebar__dot--unanswered {
    background: var(--color-surface-3);
    border: 1px solid var(--color-border);
}

/* ===== Exam Results ===== */

.exam-result {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.exam-result--pass {
    background: rgba(0, 200, 83, 0.08);
    border: 1px solid rgba(0, 200, 83, 0.2);
}

.exam-result--fail {
    background: rgba(255, 23, 68, 0.08);
    border: 1px solid rgba(255, 23, 68, 0.2);
}

.exam-result__icon {
    margin-bottom: var(--space-md);
}

.exam-result__title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.exam-result__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
}

/* Score Card */

.exam-score {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    margin-bottom: var(--space-lg);
}

@media (max-width: 640px) {
    .exam-score {
        flex-direction: column;
    }
}

.exam-score__circle {
    position: relative;
    width: 120px;
    height: 120px;
    flex-shrink: 0;
}

.exam-score__svg {
    width: 100%;
    height: 100%;
}

.exam-score__percent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.exam-score__details {
    flex: 1;
}

.exam-score__row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-surface-2);
}

.exam-score__row:last-child {
    border-bottom: none;
}

.exam-score__label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.exam-score__value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

.exam-score__value--success {
    color: var(--color-success);
}

.exam-score__value--error {
    color: var(--color-error);
}

.exam-result-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Dashboard ===== */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.dashboard-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.dashboard-panel__title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.dashboard-empty {
    text-align: center;
    padding: var(--space-lg);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

/* Dashboard Courses */

.dashboard-courses {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.dashboard-course__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.dashboard-course__title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
}

.dashboard-course__progress {
    margin-bottom: var(--space-sm);
}

.dashboard-course__progress-bar {
    height: 6px;
    background: var(--color-surface-3);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.dashboard-course__progress-fill {
    height: 100%;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.dashboard-course__progress-text {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.dashboard-course__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Dashboard Exams */

.dashboard-exams {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.dashboard-exam {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.dashboard-exam__title {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.dashboard-exam__meta {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* Dashboard Badges */

.dashboard-badges {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.dashboard-badge {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.dashboard-badge__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-cyan-muted);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.dashboard-badge__name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-primary);
    display: block;
}

.dashboard-badge__date {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

/* Dashboard Recommended */

.dashboard-recommended__title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--space-sm) 0;
}

.dashboard-recommended__desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.dashboard-recommended__meta {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
}

/* ===== Credential Verify ===== */

.verify-form__input-group {
    display: flex;
    gap: var(--space-sm);
}

.verify-form__input-group .form-input {
    flex: 1;
}

.verify-result {
    margin-top: var(--space-lg);
}

.verify-result--valid {
    border-color: rgba(0, 200, 83, 0.3);
}

.verify-result--invalid {
    border-color: rgba(255, 23, 68, 0.3);
}

.verify-result__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.verify-result__status {
    font-size: var(--text-xl);
    font-weight: 600;
}

.verify-result__status--valid {
    color: var(--color-success);
}

.verify-result__status--invalid {
    color: var(--color-error);
}

.verify-result__details {
    margin-bottom: var(--space-lg);
}

.verify-result__row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-surface-2);
}

.verify-result__row:last-child {
    border-bottom: none;
}

.verify-result__label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.verify-result__value {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.verify-result__value--valid {
    color: var(--color-success);
}

/* Embed */

.verify-embed {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.verify-embed__title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.verify-embed__code {
    margin-bottom: var(--space-md);
}

.verify-embed__textarea {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    margin-bottom: var(--space-sm);
}

.verify-embed__copy {
    margin-top: var(--space-xs);
}

.verify-embed__links {
    display: flex;
    gap: var(--space-sm);
}

/* ===== Badge Gallery ===== */

.badge-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.badge-gallery__item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge-gallery__image {
    margin-bottom: var(--space-md);
}

.badge-gallery__name {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.badge-gallery__cert {
    font-size: var(--text-sm);
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-xs);
}

.badge-gallery__date {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
}

.badge-gallery__actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--space-sm);
}

.badge-gallery__embed-code {
    width: 100%;
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
}

.badge-gallery__embed-code textarea {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    margin-bottom: var(--space-xs);
}

/* ===== Admin Enrollment ===== */

.admin-enrollment-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.admin-panel__title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.admin-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.admin-panel__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.admin-upload__file {
    padding: var(--space-sm);
}

.admin-upload__actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    margin-top: var(--space-md);
}

.admin-upload-result {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
}

.admin-upload-result--success {
    background: rgba(0, 200, 83, 0.08);
    border: 1px solid rgba(0, 200, 83, 0.2);
    color: var(--color-success);
}

.admin-upload-result--error {
    background: rgba(255, 23, 68, 0.08);
    border: 1px solid rgba(255, 23, 68, 0.2);
    color: var(--color-error);
}

.admin-upload-result__errors {
    list-style: none;
    padding: 0;
    margin: var(--space-sm) 0 0;
}

.admin-upload-result__errors li {
    padding: var(--space-xs) 0;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.admin-search {
    max-width: 260px;
}

/* Admin Table */

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.admin-table th {
    text-align: left;
    padding: var(--space-sm) var(--space-md);
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.admin-table td {
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-surface-2);
}

.admin-table__empty {
    text-align: center;
    color: var(--color-text-tertiary);
    padding: var(--space-lg) var(--space-md);
}

.admin-table__action {
    display: inline;
}

/* Seat Usage */

.admin-seats {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.admin-seats__used {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.admin-seats__bar {
    flex: 1;
    height: 6px;
    background: var(--color-surface-3);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.admin-seats__fill {
    height: 100%;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
}