/**
 * Discussions Feature Styles
 * Reddit-style threaded Q&A UI
 */

/* ===== THREAD CONTAINER ===== */
.discussion-thread {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--color-bg-secondary, #f8f9fa);
    border-radius: 8px;
    border: 1px solid var(--border-color, #e0e0e0);
}

.thread-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.thread-reply-count {
    font-size: 0.875rem;
    color: var(--color-text-secondary, #5f6368);
    font-weight: 500;
}

.add-answer-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--color-primary, #1a73e8);
    color: white;
    border: none;
    border-radius: 20px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s;
}

.add-answer-btn:hover {
    background: var(--color-primary-dark, #1557b0);
}

.add-answer-btn .material-symbols-outlined {
    font-size: 18px;
}

.no-replies {
    text-align: center;
    color: var(--color-text-muted, #80868b);
    font-style: italic;
    padding: 2rem;
}

/* ===== REPLY COMPONENT ===== */
.discussion-reply {
    position: relative;
    margin-bottom: 0.75rem;
}

.discussion-reply.nested {
    margin-left: 24px;
    padding-left: 16px;
}

/* Reddit-style connector lines */
.reply-connector {
    display: none;
}

.discussion-reply.nested .reply-connector {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color, #e0e0e0);
}

.discussion-reply.nested::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 12px;
    height: 2px;
    background: var(--border-color, #e0e0e0);
}

.reply-content {
    background: white;
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--border-color, #e0e0e0);
}

[data-theme="dark"] .reply-content {
    background: var(--color-bg-dark, #292a2d);
}

/* Reply Header */
.reply-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.reply-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.reply-username {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text, #202124);
}

.reply-time {
    font-size: 0.75rem;
    color: var(--color-text-muted, #80868b);
}

.reply-badge {
    font-size: 0.625rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.reply-badge.own {
    background: var(--color-primary, #1a73e8);
    color: white;
}

/* Reply Body */
.reply-body {
    margin-bottom: 8px;
}

.reply-body p {
    margin: 0;
    line-height: 1.5;
    color: var(--color-text, #202124);
    white-space: pre-wrap;
    word-break: break-word;
}

.reply-image {
    max-width: 100%;
    max-height: 400px;
    margin-top: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color, #e0e0e0);
}

/* Reply Actions */
.reply-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.vote-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--color-text-muted, #80868b);
    transition: all 0.15s;
}

.vote-btn:hover {
    background: var(--color-bg-hover, #f1f3f4);
}

.vote-btn .material-symbols-outlined {
    font-size: 18px;
}

.vote-btn.vote-up:hover,
.vote-btn.vote-up.active {
    color: #ff4500;
    background: rgba(255, 69, 0, 0.1);
}

.vote-btn.vote-down:hover,
.vote-btn.vote-down.active {
    color: #7193ff;
    background: rgba(113, 147, 255, 0.1);
}

.reply-score {
    min-width: 24px;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary, #5f6368);
}

.reply-score.positive {
    color: #ff4500;
}

.reply-score.negative {
    color: #7193ff;
}

.reply-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    margin-left: 8px;
    border: none;
    background: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--color-text-muted, #80868b);
    transition: all 0.15s;
}

.reply-action-btn:hover {
    background: var(--color-bg-hover, #f1f3f4);
    color: var(--color-text, #202124);
}

.reply-action-btn .material-symbols-outlined {
    font-size: 16px;
}

.reply-action-btn.delete-btn:hover {
    color: var(--color-danger, #dc3545);
    background: rgba(220, 53, 69, 0.1);
}

/* Nested Replies Container */
.nested-replies {
    margin-top: 8px;
}

/* ===== REPLY COMPOSER ===== */
.reply-composer {
    background: white;
    border: 1px solid var(--color-primary, #1a73e8);
    border-radius: 8px;
    padding: 12px;
    margin: 12px 0;
    animation: fadeIn 0.2s ease;
}

[data-theme="dark"] .reply-composer {
    background: var(--color-bg-dark, #292a2d);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reply-composer textarea {
    width: 100%;
    min-height: 80px;
    padding: 10px;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.9375rem;
    resize: vertical;
    margin-bottom: 8px;
}

.reply-composer textarea:focus {
    outline: none;
    border-color: var(--color-primary, #1a73e8);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.composer-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.composer-cancel {
    padding: 8px 16px;
    background: none;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text-secondary, #5f6368);
    transition: all 0.15s;
}

.composer-cancel:hover {
    background: var(--color-bg-hover, #f1f3f4);
}

.composer-submit {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--color-primary, #1a73e8);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.15s;
}

.composer-submit:hover {
    background: var(--color-primary-dark, #1557b0);
}

.composer-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.composer-submit .material-symbols-outlined {
    font-size: 18px;
}

/* ===== COLLAPSIBLE QUESTION HEADERS ===== */
.discussion-question {
    cursor: pointer;
    user-select: none;
}

.discussion-question .collapse-icon {
    display: inline-block;
    margin-right: 8px;
    transition: transform 0.2s;
}

.discussion-question.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.discussion-question.collapsed+.discussion-thread {
    display: none;
}

/* ===== SWIPE FEEDBACK ===== */
.discussion-reply.swiping {
    background: rgba(26, 115, 232, 0.05);
}

/* Swipe hint icon */
.discussion-reply::after {
    content: '↩';
    position: absolute;
    left: -30px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    color: var(--color-primary, #1a73e8);
    font-size: 1.5rem;
    transition: opacity 0.15s;
}

.discussion-reply[style*="translateX"]::after {
    opacity: 1;
}

/* ===== MOBILE OPTIMIZATIONS ===== */
@media (max-width: 768px) {
    .discussion-thread {
        margin: 0.5rem 0;
        padding: 0.75rem;
    }

    .discussion-reply.nested {
        margin-left: 12px;
        padding-left: 12px;
    }

    .reply-content {
        padding: 10px;
    }

    .reply-avatar {
        width: 24px;
        height: 24px;
        font-size: 10px;
    }

    .reply-actions {
        flex-wrap: wrap;
    }
}

/* ===== DARK MODE ===== */
[data-theme="dark"] .discussion-thread {
    background: var(--color-bg-dark-secondary, #35363a);
    border-color: var(--border-color-dark, #5f6368);
}

[data-theme="dark"] .reply-username,
[data-theme="dark"] .reply-body p {
    color: var(--color-text-dark, #e8eaed);
}

[data-theme="dark"] .vote-btn:hover,
[data-theme="dark"] .reply-action-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .composer-cancel:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== MARKDOWN VIEWER WITH DISCUSSIONS ===== */
.markdown-viewer {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem;
}

.markdown-content {
    line-height: 1.7;
}

/* Discussion Section (wraps header + discussion) */
.discussion-section {
    margin: 1.5rem 0;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 12px;
    overflow: hidden;
}

/* Question Header - Collapsible */
.discussion-question {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--color-bg-secondary, #f8f9fa);
    cursor: pointer;
    transition: background 0.15s;
    gap: 8px;
}

.discussion-question:hover {
    background: var(--color-bg-hover, #f1f3f4);
}

.discussion-question .collapse-icon {
    font-size: 20px;
    color: var(--color-text-muted, #80868b);
    flex-shrink: 0;
}

.discussion-question .question-text {
    flex: 1;
    margin: 0;
    font-size: 1rem;
}

.discussion-question h1.question-text {
    font-size: 1.25rem;
}

.discussion-question h2.question-text {
    font-size: 1.125rem;
}

.discussion-question h3.question-text {
    font-size: 1rem;
}

/* Discuss Button */
.discuss-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--color-text-muted, #80868b);
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
}

.discuss-btn:hover {
    background: white;
    border-color: var(--color-primary, #1a73e8);
    color: var(--color-primary, #1a73e8);
}

.discuss-btn.has-replies {
    background: var(--color-primary, #1a73e8);
    border-color: var(--color-primary, #1a73e8);
    color: white;
}

.discuss-btn .material-symbols-outlined {
    font-size: 16px;
}

.discuss-count {
    font-weight: 600;
}

/* Discussion Content Area */
.discussion-content {
    padding: 0 1rem 1rem;
}

.discussion-question.collapsed+.discussion-content {
    display: none;
}

/* Thread Container inside markdown */
.discussion-thread-container {
    display: none;
}

.discussion-thread-container.active {
    display: block;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color, #e0e0e0);
}

.loading-indicator {
    text-align: center;
    padding: 2rem;
    color: var(--color-text-muted, #80868b);
}

/* Dark mode for markdown viewer */
[data-theme="dark"] .discussion-section {
    border-color: var(--border-color-dark, #5f6368);
}

[data-theme="dark"] .discussion-question {
    background: var(--color-bg-dark-secondary, #35363a);
}

[data-theme="dark"] .discussion-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .discuss-btn {
    border-color: var(--border-color-dark, #5f6368);
    color: var(--color-text-dark-muted, #9aa0a6);
}

[data-theme="dark"] .discuss-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}