/**
 * SAW LMS Discussion System Styles
 *
 * @package SawLms
 */

/* ============================================
   CSS VARIABLES
   ============================================ */

.saw-discussion {
    --disc-primary: var(--saw-p-primary, #6366f1);
    --disc-primary-hover: var(--saw-p-primary-hover, #818cf8);
    --disc-primary-glow: var(--saw-p-primary-glow, rgba(99, 102, 241, 0.4));
    --disc-success: var(--saw-p-success, #10b981);
    --disc-success-glow: var(--saw-p-success-glow, rgba(16, 185, 129, 0.3));
    --disc-warning: var(--saw-p-warning, #f59e0b);
    --disc-danger: #ef4444;

    --disc-bg: var(--saw-p-bg, #0c0f17);
    --disc-surface: var(--saw-p-surface, #151922);
    --disc-surface-alt: var(--saw-p-surface-alt, #1e2330);
    --disc-border: var(--saw-p-border, #262d3d);
    --disc-text: var(--saw-p-text, #f1f5f9);
    --disc-text-secondary: var(--saw-p-text-secondary, #94a3b8);
    --disc-text-muted: var(--saw-p-text-muted, #64748b);

    --disc-radius: 12px;
    --disc-radius-sm: 8px;
    --disc-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
    --disc-duration: 200ms;
}

/* ============================================
   BASE CONTAINER
   ============================================ */

.saw-discussion {
    font-family: inherit;
    color: var(--disc-text);
    line-height: 1.6;
}

.saw-discussion.is-loading {
    pointer-events: none;
    opacity: 0.7;
}

/* ============================================
   HEADER / CONTROLS
   ============================================ */

.saw-discussion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.saw-discussion__title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.saw-discussion__count {
    font-size: 13px;
    font-weight: 500;
    color: var(--disc-text-muted);
    background: var(--disc-surface-alt);
    padding: 4px 10px;
    border-radius: 99px;
}

.saw-discussion__controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.saw-discussion__filter-select {
    background: var(--disc-surface-alt);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    color: var(--disc-text);
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: border-color var(--disc-duration) var(--disc-ease);
}

.saw-discussion__filter-select:hover {
    border-color: var(--disc-primary);
}

.saw-discussion__filter-select:focus {
    outline: none;
    border-color: var(--disc-primary);
    box-shadow: 0 0 0 3px var(--disc-primary-glow);
}

/* ============================================
   NEW DISCUSSION BUTTON & FORM
   ============================================ */

.saw-discussion__new-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--disc-primary);
    color: #fff;
    border: none;
    border-radius: var(--disc-radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
}

.saw-discussion__new-btn:hover {
    background: var(--disc-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--disc-primary-glow);
}

.saw-discussion__new-btn svg {
    width: 16px;
    height: 16px;
}

.saw-discussion__new-form {
    display: none;
    background: var(--disc-surface);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius);
    padding: 20px;
    margin-bottom: 24px;
}

.saw-discussion__new-form.is-visible {
    display: block;
}

.saw-discussion__form-group {
    margin-bottom: 16px;
}

.saw-discussion__form-group:last-child {
    margin-bottom: 0;
}

.saw-discussion__form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--disc-text-secondary);
    margin-bottom: 6px;
}

.saw-discussion__form-input,
.saw-discussion__form-textarea {
    width: 100%;
    background: var(--disc-surface-alt);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    color: var(--disc-text);
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--disc-duration) var(--disc-ease);
}

.saw-discussion__form-input:focus,
.saw-discussion__form-textarea:focus {
    outline: none;
    border-color: var(--disc-primary);
    box-shadow: 0 0 0 3px var(--disc-primary-glow);
}

.saw-discussion__form-textarea {
    min-height: 100px;
    resize: vertical;
}

.saw-discussion__form-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.saw-discussion__form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
}

.saw-discussion__form-checkbox input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.saw-discussion__form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 16px;
}

/* ============================================
   DISCUSSION LIST
   ============================================ */

.saw-discussion__items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.saw-discussion__item {
    display: flex;
    gap: 16px;
    background: var(--disc-surface);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius);
    padding: 16px;
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
}

.saw-discussion__item:hover {
    border-color: var(--disc-primary);
    transform: translateX(4px);
}

.saw-discussion__item.is-pinned {
    border-color: rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, var(--disc-surface) 100%);
}

.saw-discussion__item.is-resolved {
    opacity: 0.8;
}

.saw-discussion__item-left {
    flex-shrink: 0;
}

.saw-discussion__item-main {
    flex: 1;
    min-width: 0;
}

.saw-discussion__item-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.saw-discussion__item-title {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 10px;
    line-height: 1.4;
}

.saw-discussion__item-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--disc-text-muted);
    flex-wrap: wrap;
}

.saw-discussion__separator {
    color: var(--disc-border);
}

.saw-discussion__replies {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.saw-discussion__replies svg {
    width: 14px;
    height: 14px;
}

/* ============================================
   BADGES
   ============================================ */

.saw-discussion__badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.saw-discussion__badge svg {
    width: 12px;
    height: 12px;
}

.saw-discussion__badge--pinned {
    background: rgba(99, 102, 241, 0.15);
    color: var(--disc-primary);
}

.saw-discussion__badge--question {
    background: rgba(245, 158, 11, 0.15);
    color: var(--disc-warning);
    font-weight: 700;
}

.saw-discussion__badge--resolved {
    background: rgba(16, 185, 129, 0.15);
    color: var(--disc-success);
}

.saw-discussion__visibility-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.saw-discussion__visibility-badge--public {
    background: rgba(16, 185, 129, 0.12);
    color: var(--disc-success);
}

.saw-discussion__visibility-badge--group {
    background: rgba(99, 102, 241, 0.12);
    color: var(--disc-primary);
}

.saw-discussion__visibility-badge--private {
    background: rgba(148, 163, 184, 0.12);
    color: var(--disc-text-secondary);
}

/* ============================================
   VOTING
   ============================================ */

.saw-vote {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.saw-vote--compact {
    flex-direction: column;
    gap: 4px;
}

.saw-vote__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1px solid var(--disc-border);
    border-radius: 6px;
    color: var(--disc-text-muted);
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
}

.saw-vote__btn:hover {
    border-color: var(--disc-primary);
    color: var(--disc-primary);
}

.saw-vote__btn.is-active {
    background: var(--disc-primary);
    border-color: var(--disc-primary);
    color: #fff;
}

.saw-vote__btn--up.is-active {
    background: var(--disc-success);
    border-color: var(--disc-success);
}

.saw-vote__btn--down.is-active {
    background: var(--disc-danger);
    border-color: var(--disc-danger);
}

.saw-vote__btn svg {
    width: 14px;
    height: 14px;
}

.saw-vote__count {
    font-size: 13px;
    font-weight: 600;
    color: var(--disc-text);
    min-width: 20px;
    text-align: center;
}

/* ============================================
   AVATARS
   ============================================ */

.saw-discussion__avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.saw-discussion__avatar--lg {
    width: 40px;
    height: 40px;
}

.saw-discussion__author {
    font-weight: 500;
    color: var(--disc-text);
}

.saw-discussion__author.is-instructor {
    color: var(--disc-primary);
}

.saw-discussion__time {
    color: var(--disc-text-muted);
}

.saw-discussion__edited {
    font-style: italic;
    color: var(--disc-text-muted);
    font-size: 11px;
}

/* ============================================
   THREAD VIEW
   ============================================ */

.saw-discussion__thread {
    display: none;
}

.saw-discussion__thread-header {
    margin-bottom: 20px;
}

.saw-discussion__back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--disc-surface-alt);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    color: var(--disc-text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
}

.saw-discussion__back-btn:hover {
    border-color: var(--disc-primary);
    transform: translateX(-4px);
}

.saw-discussion__back-btn svg {
    width: 18px;
    height: 18px;
}

.saw-discussion__thread-main {
    display: flex;
    gap: 20px;
    background: var(--disc-surface);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius);
    padding: 24px;
    margin-bottom: 24px;
}

.saw-discussion__thread-main.is-resolved {
    border-color: rgba(16, 185, 129, 0.3);
}

.saw-discussion__thread-left {
    flex-shrink: 0;
}

.saw-discussion__thread-body {
    flex: 1;
    min-width: 0;
}

.saw-discussion__thread-badges {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.saw-discussion__thread-title {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 16px;
    line-height: 1.4;
}

.saw-discussion__thread-content {
    font-size: 15px;
    line-height: 1.7;
    color: var(--disc-text-secondary);
    margin-bottom: 20px;
}

.saw-discussion__thread-content p {
    margin: 0 0 1em;
}

.saw-discussion__thread-content p:last-child {
    margin-bottom: 0;
}

.saw-discussion__thread-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--disc-border);
    flex-wrap: wrap;
}

.saw-discussion__thread-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.saw-discussion__thread-meta>div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Smaller author info in main thread */
.saw-discussion__thread-meta .saw-discussion__author {
    font-size: 13px;
}

.saw-discussion__thread-meta .saw-discussion__time {
    font-size: 12px;
}

.saw-discussion__thread-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ============================================
   REPLIES
   ============================================ */

.saw-discussion__replies {
    margin-bottom: 24px;
}

.saw-discussion__replies-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 16px;
    color: var(--disc-text);
}

.saw-discussion__replies-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    padding-left: 0;
}

.saw-reply {
    display: flex;
    gap: 10px;
    background: transparent;
    border: none;
    padding: 10px 8px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: visible;
    position: relative;
    border-radius: 8px;
    transition: background-color 0.15s ease;
}

.saw-reply:hover {
    background: rgba(99, 102, 241, 0.05);
}

.saw-reply:hover::before {
    background: rgba(99, 102, 241, 0.7) !important;
}

.saw-reply.is-accepted {
    background: rgba(16, 185, 129, 0.05);
    border-radius: var(--disc-radius-sm);
    padding: 10px;
}

.saw-reply__thread-container:hover::before {
    background: var(--disc-primary);
}

.saw-reply__left {
    flex-shrink: 0;
}

.saw-reply__main {
    flex: 1;
    min-width: 0;
}

.saw-reply__header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    flex-wrap: wrap;
    font-size: 12px;
}

.saw-reply__instructor-badge {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: rgba(99, 102, 241, 0.15);
    color: var(--disc-primary);
    padding: 2px 6px;
    border-radius: 4px;
}

.saw-reply__accepted-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: rgba(16, 185, 129, 0.15);
    color: var(--disc-success);
    padding: 2px 6px;
    border-radius: 4px;
}

.saw-reply__accepted-badge svg {
    width: 12px;
    height: 12px;
}

.saw-reply__content {
    font-size: 14px !important;
    font-weight: 400 !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
    font-synthesis: none !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    color: var(--disc-text);
    margin-bottom: 10px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: pre-line;
}

/* Force normal font weight on ALL content children including bold tags */
.saw-reply__content *,
.saw-reply__content strong,
.saw-reply__content b,
.saw-reply__content p,
.saw-reply__content span,
.saw-reply__content div {
    font-weight: 400 !important;
    font-family: inherit !important;
    font-synthesis: none !important;
}

.saw-reply__content p {
    margin: 0 0 0.75em;
}

.saw-reply__content p:last-child {
    margin-bottom: 0;
}

.saw-reply__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Delete button as icon - fixed position from container right edge */
.saw-reply__delete-btn {
    position: absolute;
    top: 10px;
    padding: 4px !important;
    z-index: 1;
}

/* Depth 0 - delete at right edge */
.saw-reply.saw-reply--depth-0 .saw-reply__delete-btn {
    right: 0;
}

/* Depth 1-3 - delete at consistent right position */
.saw-reply.saw-reply--depth-1 .saw-reply__delete-btn {
    right: -24px;
}

.saw-reply.saw-reply--depth-2 .saw-reply__delete-btn {
    right: -24px;
}

.saw-reply.saw-reply--depth-3 .saw-reply__delete-btn {
    right: -24px;
}

.saw-reply__delete-btn svg {
    width: 14px;
    height: 14px;
}

/* Nested reply form */
.saw-discussion__inline-reply {
    margin-top: 12px;
    padding: 12px;
    background: var(--disc-surface-alt);
    border-radius: var(--disc-radius-sm);
}

.saw-discussion__inline-reply textarea {
    width: 100%;
    background: var(--disc-surface);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    color: var(--disc-text);
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    margin-bottom: 10px;
}

.saw-discussion__inline-reply textarea:focus {
    outline: none;
    border-color: var(--disc-primary);
}

/* Reply section at bottom */
.saw-discussion__reply-section {
    background: var(--disc-surface);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius);
    padding: 20px;
}

.saw-discussion__reply-form textarea {
    width: 100%;
    background: var(--disc-surface-alt);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    color: var(--disc-text);
    padding: 12px 16px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
    margin-bottom: 12px;
}

.saw-discussion__reply-form textarea:focus {
    outline: none;
    border-color: var(--disc-primary);
    box-shadow: 0 0 0 3px var(--disc-primary-glow);
}

.saw-discussion__reply-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

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

.saw-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--disc-radius-sm);
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
    border: none;
}

.saw-btn svg {
    width: 16px;
    height: 16px;
}

.saw-btn--primary {
    background: var(--disc-primary);
    color: #fff;
}

.saw-btn--primary:hover {
    background: var(--disc-primary-hover);
}

.saw-btn--ghost {
    background: transparent;
    border: 1px solid var(--disc-border);
    color: var(--disc-text-secondary);
}

.saw-btn--ghost:hover {
    border-color: var(--disc-primary);
    color: var(--disc-primary);
}

.saw-btn--sm {
    padding: 6px 12px;
    font-size: 12px;
}

.saw-btn--sm svg {
    width: 14px;
    height: 14px;
}

.saw-btn--xs {
    padding: 4px 8px;
    font-size: 11px;
}

.saw-btn--xs svg {
    width: 12px;
    height: 12px;
}

.saw-btn--danger {
    color: var(--disc-danger);
}

.saw-btn--danger:hover {
    border-color: var(--disc-danger);
    background: rgba(239, 68, 68, 0.1);
}

.saw-btn--success {
    color: var(--disc-success);
}

.saw-btn--success:hover {
    border-color: var(--disc-success);
    background: rgba(16, 185, 129, 0.1);
}

.saw-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   EMPTY STATE
   ============================================ */

.saw-discussion__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--disc-text-muted);
}

.saw-discussion__empty-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.saw-discussion__empty p {
    margin: 0;
    font-size: 14px;
}

/* ============================================
   LOAD MORE
   ============================================ */

.saw-discussion__load-more {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

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

@media (max-width: 640px) {
    .saw-discussion__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .saw-discussion__controls {
        width: 100%;
        justify-content: space-between;
    }

    .saw-discussion__item {
        flex-direction: column;
        gap: 12px;
    }

    .saw-discussion__item-left {
        display: flex;
    }

    .saw-vote {
        flex-direction: row;
    }

    .saw-discussion__thread-main {
        flex-direction: column;
        gap: 16px;
    }

    .saw-discussion__thread-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .saw-reply {
        flex-direction: column;
        gap: 8px;
    }
}

/* ============================================
   ENHANCED QUESTION CHECKBOX
   ============================================ */

.saw-discussion__form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 13px;
    padding: 10px 14px;
    background: var(--disc-surface-alt);
    border: 1px solid var(--disc-border);
    border-radius: var(--disc-radius-sm);
    transition: all var(--disc-duration) var(--disc-ease);
}

.saw-discussion__form-checkbox:hover {
    border-color: var(--disc-warning);
}

.saw-discussion__form-checkbox input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--disc-border);
    border-radius: 4px;
    background: var(--disc-surface);
    cursor: pointer;
    transition: all var(--disc-duration) var(--disc-ease);
    position: relative;
    flex-shrink: 0;
}

.saw-discussion__form-checkbox input[type="checkbox"]:checked {
    background: var(--disc-warning);
    border-color: var(--disc-warning);
}

.saw-discussion__form-checkbox input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid #000;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.saw-discussion__form-checkbox:has(input:checked) {
    border-color: var(--disc-warning);
    background: rgba(245, 158, 11, 0.08);
}

.saw-discussion__form-checkbox span {
    color: var(--disc-text-secondary);
    line-height: 1.4;
}

.saw-discussion__form-checkbox:has(input:checked) span {
    color: var(--disc-warning);
    font-weight: 500;
}

/* Question badge with Q */
.saw-discussion__badge--question {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    padding: 0;
    background: var(--disc-warning);
    color: #000;
    font-weight: 700;
    font-size: 12px;
    border-radius: 50%;
}

/* ============================================
   THREAD LINES / VISUAL DEPTH INDICATORS
   Clean left border for threading
   ============================================ */

/* Override for proper gap in replies */
.saw-discussion__replies-list {
    gap: 16px !important;
}

/* ============================================
   FB-STYLE THREAD LINES
   Vertical + horizontal connector lines
   ============================================ */

/* Container - vertical thread line on left */
.saw-discussion .saw-discussion__replies-list {
    max-width: 100%;
    padding-left: 20px;
    margin-left: 12px;
    border-left: 2px solid rgba(99, 102, 241, 0.4);
    position: relative;
}

/* Base reply - narrower width for nesting */
.saw-discussion .saw-reply {
    position: relative;
}

/* Depth 0 - full width */
.saw-discussion .saw-reply.saw-reply--depth-0 {
    margin-left: 0 !important;
    width: 100% !important;
}

/* Depth 1 */
.saw-discussion .saw-reply.saw-reply--depth-1 {
    margin-left: 0 !important;
    width: calc(100% - 24px) !important;
    margin-right: 0 !important;
}

/* Depth 2 */
.saw-discussion .saw-reply.saw-reply--depth-2 {
    margin-left: 24px !important;
    width: calc(100% - 48px) !important;
    margin-right: 0 !important;
}

/* Depth 3+ */
.saw-discussion .saw-reply.saw-reply--depth-3 {
    margin-left: 48px !important;
    width: calc(100% - 72px) !important;
    margin-right: 0 !important;
}

/* Horizontal connector line - from vertical bar to reply */
/* All depths use same connector to reach the container border-left */
.saw-discussion .saw-reply.saw-reply--depth-0::before,
.saw-discussion .saw-reply.saw-reply--depth-1::before,
.saw-discussion .saw-reply.saw-reply--depth-2::before,
.saw-discussion .saw-reply.saw-reply--depth-3::before {
    content: '' !important;
    display: block !important;
    position: absolute !important;
    left: -22px !important;
    top: 16px !important;
    width: 20px !important;
    height: 2px !important;
    background: rgba(99, 102, 241, 0.4) !important;
}

/* ============================================
   ACTIVE BUTTON STATES
   ============================================ */

/* Pinned button active state */
.saw-discussion__pin-btn.is-pinned {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--disc-primary);
    color: var(--disc-primary);
}

.saw-discussion__pin-btn.is-pinned svg {
    fill: var(--disc-primary);
}

/* Resolved button active state */
.saw-discussion__resolve-btn.is-resolved,
.saw-discussion__thread-main.is-resolved .saw-discussion__resolve-btn {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--disc-success);
    color: var(--disc-success);
    pointer-events: none;
}

/* Subscribe button active state */
.saw-discussion__subscribe-btn.is-subscribed {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--disc-primary);
    color: var(--disc-primary);
}

/* Responsive: reduce nesting on mobile */
@media (max-width: 640px) {
    .saw-reply--depth-1 {
        margin-left: 20px !important;
    }

    .saw-reply--depth-2 {
        margin-left: 32px !important;
    }

    .saw-reply--depth-3 {
        margin-left: 44px !important;
    }

    .saw-reply--depth-1::before {
        left: 8px;
    }

    .saw-reply--depth-2::before {
        left: 20px;
    }

    .saw-reply--depth-3::before {
        left: 32px;
    }

    .saw-reply--depth-1::after {
        left: 8px;
        width: 8px;
    }

    .saw-reply--depth-2::after {
        left: 20px;
        width: 8px;
    }

    .saw-reply--depth-3::after {
        left: 32px;
        width: 8px;
    }
}

/* ============================================
   REPLY-SPECIFIC AUTHOR STYLES
   Make author info smaller, content dominant
   ============================================ */

.saw-reply .saw-discussion__avatar {
    width: 20px;
    height: 20px;
}

.saw-reply .saw-discussion__author {
    font-size: 12px;
    font-weight: 500;
    color: var(--disc-text-secondary);
}

.saw-reply .saw-discussion__author.is-instructor {
    color: var(--disc-primary);
}

.saw-reply .saw-discussion__time {
    font-size: 11px;
    color: var(--disc-text-muted);
}