/**
 * Blog Comments System Styles
 */

.comments-section {
    max-width: 800px;
    margin: var(--space-12) auto;
    padding-top: var(--space-8);
    border-top: 2px solid var(--color-border);
}

.comments-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.comments-header h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.comment-count {
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
}

/* Comment Form */
.comment-form {
    background: var(--color-bg-secondary);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
}

.comment-form h3 {
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
}

.comment-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.comment-form .form-group {
    margin-bottom: var(--space-4);
}

.comment-form label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--color-text-primary);
}

.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all 0.3s ease;
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.comment-form textarea {
    resize: vertical;
    min-height: 120px;
}

.comment-form button[type="submit"] {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.comment-form button[type="submit"]:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.comment-form button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Comments List */
.comments-list {
    margin-top: var(--space-8);
}

.comment {
    padding: var(--space-4);
    border-left: 3px solid transparent;
    margin-bottom: var(--space-4);
    transition: all 0.3s ease;
}

.comment:hover {
    border-left-color: var(--color-primary);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.comment-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    font-weight: 700;
    flex-shrink: 0;
}

.comment-meta {
    flex: 1;
}

.comment-author {
    display: block;
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.comment-date {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.comment-content {
    padding-left: calc(48px + var(--space-3));
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.comment-actions {
    padding-left: calc(48px + var(--space-3));
    display: flex;
    gap: var(--space-3);
}

.comment-reply-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

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

/* Comment Replies */
.comment-replies {
    margin-left: calc(48px + var(--space-6));
    padding-left: var(--space-4);
    border-left: 2px solid var(--color-border);
    margin-top: var(--space-4);
}

.comment-reply {
    margin-bottom: var(--space-4);
}

.comment-reply .comment-avatar {
    width: 40px;
    height: 40px;
    font-size: var(--text-base);
}

.comment-reply .comment-content {
    padding-left: calc(40px + var(--space-3));
}

.comment-reply .comment-actions {
    padding-left: calc(40px + var(--space-3));
}

/* Reply Form */
.comment-reply-form {
    margin-top: var(--space-4);
    margin-left: calc(48px + var(--space-3));
}

.reply-form {
    background: var(--color-bg-secondary);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
}

.reply-form .form-group {
    margin-bottom: var(--space-3);
}

.reply-form input,
.reply-form textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: inherit;
}

.reply-form input:focus,
.reply-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.reply-form textarea {
    resize: vertical;
    min-height: 80px;
}

.reply-form .form-actions {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.reply-form .btn {
    padding: var(--space-2) var(--space-4);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.reply-form .btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.reply-form .btn-primary:hover {
    background: var(--color-primary-dark);
}

.reply-form .btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.reply-form .btn-secondary:hover {
    background: var(--color-border);
}

/* No Comments State */
.no-comments {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--color-text-secondary);
}

.no-comments i {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.no-comments p {
    font-size: var(--text-lg);
}

/* Alert Messages */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: slideIn 0.3s ease;
    transition: opacity 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.alert i {
    font-size: var(--text-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
    .comment-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .comment-replies {
        margin-left: var(--space-4);
    }
    
    .comment-reply-form {
        margin-left: var(--space-4);
    }
    
    .comment-content {
        padding-left: 0;
        margin-top: var(--space-3);
    }
    
    .comment-actions {
        padding-left: 0;
    }
    
    .comment-reply .comment-content {
        padding-left: 0;
    }
    
    .comment-reply .comment-actions {
        padding-left: 0;
    }
}

/* Loading State */
.comments-loading {
    text-align: center;
    padding: var(--space-8);
    color: var(--color-text-secondary);
}

.comments-loading i {
    font-size: 2rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}