/**
 * Comment System Styles - Modern Design
 * Beautiful, responsive comment interface with animations
 */

/* ==================== Variables ==================== */
:root {
    --comment-primary: #6366f1;
    --comment-primary-dark: #4f46e5;
    --comment-primary-light: #818cf8;
    --comment-bg: #1e293b;
    --comment-bg-hover: #334155;
    --comment-border: #334155;
    --comment-text: #f1f5f9;
    --comment-text-secondary: #94a3b8;
    --comment-text-muted: #64748b;
    --comment-success: #22c55e;
    --comment-error: #ef4444;
    --comment-warning: #f59e0b;
    --comment-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --comment-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --comment-radius: 16px;
    --comment-radius-sm: 8px;
}

/* ==================== Container ==================== */
.comments-section {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--comment-bg);
    border-radius: var(--comment-radius);
    border: 1px solid var(--comment-border);
}

.comments-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--comment-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==================== Comment Form ==================== */
.comment-form-wrapper {
    margin-bottom: 2rem;
    animation: slideDown 0.4s ease-out;
}

.login-prompt {
    padding: 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid var(--comment-primary);
    border-radius: var(--comment-radius);
}

.login-prompt-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

.login-prompt p {
    color: var(--comment-text-secondary);
    margin-bottom: 1rem;
}

.comment-form {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius);
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.comment-form:hover {
    border-color: var(--comment-primary);
    box-shadow: var(--comment-shadow);
}

.comment-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.comment-user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--comment-primary), var(--comment-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--comment-shadow);
}

.comment-user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.comment-user-name {
    font-weight: 600;
    color: var(--comment-text);
}

.comment-form textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    border: 2px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--comment-text);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 1rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.comment-form textarea:focus {
    outline: none;
    border-color: var(--comment-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.comment-form textarea::placeholder {
    color: var(--comment-text-muted);
}

.comment-textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    border: 2px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--comment-text);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 1rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.comment-textarea:focus {
    outline: none;
    border-color: var(--comment-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.comment-textarea::placeholder {
    color: var(--comment-text-muted);
}

.comment-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.comment-char-count {
    font-size: 0.875rem;
    color: var(--comment-text-muted);
    transition: color 0.3s ease;
}

.comment-char-count.warning {
    color: var(--comment-warning);
}

.comment-char-count.error {
    color: var(--comment-error);
}

.comment-form-actions {
    display: flex;
    gap: 0.75rem;
}

/* ==================== Buttons ==================== */
.btn-comment {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--comment-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-comment-primary {
    background: linear-gradient(135deg, var(--comment-primary), var(--comment-primary-dark));
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-comment-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-comment-primary:active {
    transform: translateY(0);
}

.btn-comment-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

.btn-comment-secondary:hover {
    background: var(--comment-bg-hover);
    color: var(--comment-text);
}

/* ==================== Comment List ==================== */
.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ==================== Single Comment ==================== */
.comment {
    animation: fadeInUp 0.4s ease-out;
    animation-fill-mode: both;
}

.comment:nth-child(1) { animation-delay: 0s; }
.comment:nth-child(2) { animation-delay: 0.1s; }
.comment:nth-child(3) { animation-delay: 0.2s; }
.comment:nth-child(4) { animation-delay: 0.3s; }
.comment:nth-child(5) { animation-delay: 0.4s; }

.comment-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius);
    padding: 1.25rem;
    transition: all 0.3s ease;
}

.comment-card:hover {
    border-color: var(--comment-primary);
    box-shadow: var(--comment-shadow);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.comment-header .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--comment-primary), var(--comment-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.comment-header .avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.comment-meta {
    flex: 1;
}

.comment-author {
    font-weight: 600;
    color: var(--comment-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comment-author .username {
    color: var(--comment-text-secondary);
    font-weight: 400;
    font-size: 0.9rem;
}

.comment-date {
    font-size: 0.8rem;
    color: var(--comment-text-muted);
}

.comment-content {
    color: var(--comment-text);
    line-height: 1.7;
    margin-bottom: 1rem;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.comment-content.deleted {
    color: var(--comment-text-muted);
    font-style: italic;
}

/* ==================== Comment Actions ==================== */
.comment-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--comment-text-secondary);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.action-btn:hover {
    background: var(--comment-bg-hover);
    color: var(--comment-text);
}

.action-btn.active {
    color: var(--comment-primary);
}

.action-btn.danger:hover {
    color: var(--comment-error);
}

.action-btn.report-btn {
    color: var(--comment-text-muted);
    font-size: 0.8rem;
}

.action-btn.report-btn:hover {
    color: var(--comment-error);
    background: rgba(239, 68, 68, 0.1);
}

/* ==================== Reactions ==================== */
.reactions-container {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.reaction-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.6rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--comment-text-secondary);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.reaction-btn:hover {
    transform: scale(1.1);
    border-color: var(--comment-border);
}

.reaction-btn.active {
    background: var(--comment-primary);
    color: white;
    border-color: var(--comment-primary);
}

.reaction-btn .count {
    font-weight: 600;
}

/* ==================== Replies (Nested) ==================== */
.replies-container {
    margin-top: 1rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 2px solid var(--comment-border);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.replies-container .comment {
    margin-left: 0;
}

/* ==================== Reply Form ==================== */
.reply-form {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--comment-radius-sm);
    animation: slideDown 0.3s ease-out;
}

.reply-form textarea {
    width: 100%;
    min-height: 80px;
    padding: 0.75rem;
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--comment-text);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.reply-form textarea:focus {
    outline: none;
    border-color: var(--comment-primary);
}

.reply-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

/* ==================== Empty State ==================== */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--comment-text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.empty-state-hint {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ==================== Loading State ==================== */
.loading-comments {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--comment-border);
    border-top-color: var(--comment-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    color: var(--comment-text-muted);
    font-size: 0.95rem;
}

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--comment-border);
}

.pagination-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: transparent;
    color: var(--comment-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.pagination-btn.active {
    background: var(--comment-primary);
    color: white;
    border-color: var(--comment-primary);
}

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

.pagination-info {
    color: var(--comment-text-muted);
    font-size: 0.9rem;
    padding: 0 1rem;
}

/* ==================== Report Modal ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.modal-content {
    background: var(--comment-bg);
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius);
    padding: 1.5rem;
    width: 90%;
    max-width: 450px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: var(--comment-shadow-lg);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--comment-text);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--comment-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--comment-error);
}

.report-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--comment-text);
    font-size: 0.9rem;
}

.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--comment-text);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--comment-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group select option {
    background: var(--comment-bg);
    color: var(--comment-text);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group textarea::placeholder {
    color: var(--comment-text-muted);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

/* ==================== Toast Notifications ==================== */
.comment-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--comment-radius-sm);
    color: white;
    font-weight: 500;
    z-index: 10000;
    animation: slideInRight 0.3s ease-out;
    box-shadow: var(--comment-shadow-lg);
}

.comment-toast.success {
    background: linear-gradient(135deg, var(--comment-success), #16a34a);
}

.comment-toast.error {
    background: linear-gradient(135deg, var(--comment-error), #dc2626);
}

.comment-toast.info {
    background: linear-gradient(135deg, var(--comment-primary), var(--comment-primary-dark));
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ==================== Badges ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge-primary {
    background: var(--comment-primary);
    color: white;
}

.badge-warning {
    background: var(--comment-warning);
    color: #1a1a1a;
}

.badge-error {
    background: var(--comment-error);
    color: white;
}

.badge-success {
    background: var(--comment-success);
    color: white;
}

/* ==================== Comment Edited Indicator ==================== */
.comment-edited {
    font-size: 0.75rem;
    color: var(--comment-text-muted);
    margin-bottom: 0.5rem;
}

/* ==================== Edit Form ==================== */
.edit-form-container {
    margin-bottom: 1rem;
    animation: slideDown 0.3s ease-out;
}

.edit-form {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    padding: 1rem;
}

.edit-textarea {
    width: 100%;
    min-height: 80px;
    padding: 0.75rem;
    border: 2px solid var(--comment-border);
    border-radius: var(--comment-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--comment-text);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 0.95rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.edit-textarea:focus {
    outline: none;
    border-color: var(--comment-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.edit-form-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 0.75rem;
}

/* ==================== Toggle Replies ==================== */
.toggle-replies-btn {
    background: none;
    border: none;
    color: var(--comment-primary);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    transition: color 0.2s ease;
}

.toggle-replies-btn:hover {
    color: var(--comment-primary-light);
    text-decoration: underline;
}

.replies-container.collapsed {
    display: none;
}

.replies-container {
    margin-top: 1rem;
    margin-left: 1.5rem;
    padding-left: 1rem;
    border-left: 2px solid var(--comment-border);
    transition: all 0.3s ease;
}

/* ==================== Admin Actions ==================== */
.admin-actions {
    display: flex;
    gap: 0.25rem;
    margin-left: auto;
    padding-left: 0.5rem;
    border-left: 1px solid var(--comment-border);
}

.admin-actions .action-btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

.admin-actions .action-btn.approve-btn:hover {
    color: var(--comment-success);
    background: rgba(34, 197, 94, 0.1);
}

.admin-actions .action-btn.reject-btn:hover {
    color: var(--comment-error);
    background: rgba(239, 68, 68, 0.1);
}

.admin-actions .action-btn.pin-btn:hover {
    color: var(--comment-warning);
    background: rgba(245, 158, 11, 0.1);
}

.admin-actions .action-btn.pin-btn.active {
    color: var(--comment-warning);
    background: rgba(245, 158, 11, 0.2);
}

/* ==================== User Delete Button ==================== */
.action-btn.delete-btn:hover {
    color: var(--comment-error);
    background: rgba(239, 68, 68, 0.1);
}

.action-btn.edit-btn:hover {
    color: var(--comment-primary);
    background: rgba(99, 102, 241, 0.1);
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    .comments-section {
        padding: 1.25rem;
        margin: 2rem 0;
        border-radius: 12px;
    }
    
    .comments-section h2 {
        font-size: 1.25rem;
    }
    
    .comment-card {
        padding: 1rem;
    }
    
    .comment-form {
        padding: 1rem;
    }
    
    .comment-form-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .comment-form-actions {
        justify-content: flex-end;
    }
    
    .comment-actions {
        gap: 0.25rem;
    }
    
    .action-btn {
        padding: 0.3rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .replies-container {
        margin-left: 0.5rem;
        padding-left: 0.75rem;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .pagination-info {
        width: 100%;
        text-align: center;
        padding: 0.5rem 0;
    }
}

@media (max-width: 480px) {
    .comments-section {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .comment-user-avatar {
        width: 36px;
        height: 36px;
    }
    
    .comment-header .avatar {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
    
    .btn-comment {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
    
    .reactions-container {
        width: 100%;
    }
    
    .reaction-btn {
        flex: 1;
        justify-content: center;
    }
}

/* ==================== Accessibility ==================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.btn-comment:focus-visible,
.action-btn:focus-visible,
.reaction-btn:focus-visible,
.pagination-btn:focus-visible {
    outline: 2px solid var(--comment-primary);
    outline-offset: 2px;
}