/* ===================================
   FORUM STYLES - PREMIUM DESIGN
   =================================== */

/* Forum Auth Section */
.forum-auth-section {
    margin-bottom: 1.5rem;
}

#auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.auth-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.auth-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    overflow: hidden;
    border: 2px solid var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.auth-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.auth-name {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.auth-login-btn,
.auth-logout-btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
    background: var(--bg-secondary);
    color: var(--gray-700);
}

.auth-login-btn {
    background: var(--gray-900);
    color: var(--white);
    border-color: var(--gray-900);
}

.auth-login-btn:hover {
    background: var(--gray-800);
}

.auth-logout-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

/* Category Tabs */
.forum-categories {
    margin-bottom: 1.5rem;
}

.category-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
    display: none;
}

.cat-tab {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.cat-tab:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--gray-900);
}

.cat-tab.active {
    background: var(--gray-900);
    color: var(--white);
    border-color: var(--gray-900);
    font-weight: 600;
}

/* New Post Section */
.new-post-section {
    margin-bottom: 2rem;
}

.new-post-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
}

.post-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-row {
    margin-bottom: 1rem;
}

.form-row:last-child {
    margin-bottom: 0;
}

#post-category,
#post-title,
#post-content {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--gray-900);
    background: var(--bg-secondary);
    transition: all var(--transition-base);
    font-family: inherit;
}

#post-category {
    cursor: pointer;
    color: var(--gray-600);
}

#post-content {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

#post-title:focus,
#post-content:focus,
#post-category:focus {
    outline: none;
    border-color: var(--gray-400);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

#post-title::placeholder,
#post-content::placeholder {
    color: var(--gray-400);
}

.post-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--gray-600);
    cursor: pointer;
    transition: color var(--transition-base);
}

.checkbox-label:hover {
    color: var(--gray-900);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--gray-900);
}

.post-submit-btn {
    padding: 0.75rem 1.75rem;
    background: var(--gray-900);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-submit-btn:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
}

.post-submit-btn:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    transform: none;
}

/* Posts Container */
.posts-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Post Card */
.post-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
    transition: all var(--transition-smooth);
}

.post-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
}

.post-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.post-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    overflow: hidden;
    flex-shrink: 0;
}

.post-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-author-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.post-author-name {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--gray-500);
}

.post-category-badge {
    padding: 0.2rem 0.6rem;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--gray-600);
}

.post-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.post-content {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.post-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-100);
}

.post-action-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.875rem;
    background: var(--bg-secondary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-base);
}

.post-action-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--gray-900);
}

.post-action-btn.liked {
    background: var(--gray-900);
    border-color: var(--gray-900);
    color: var(--white);
}

/* Login Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.login-modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    max-width: 420px;
    width: 100%;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.login-modal-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.login-modal-content>p {
    color: var(--gray-500);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.login-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
    background: var(--bg-secondary);
    color: var(--gray-700);
    width: 100%;
}

.login-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

.login-btn img {
    width: 20px;
    height: 20px;
}

.google-btn {
    background: var(--bg-secondary);
    border-color: var(--gray-200);
}

.google-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

.guest-btn {
    background: var(--gray-100);
    border-color: var(--gray-200);
}

.login-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--gray-400);
    font-size: 0.85rem;
    margin: 0.5rem 0;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.login-note {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--gray-500);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 1.5rem;
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.empty-state p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* ===================================
   DARK MODE - FORUM
   =================================== */

html.dark-mode #auth-container,
html.dark-mode .new-post-card,
html.dark-mode .post-card,
html.dark-mode .login-modal-content {
    background: var(--bg-secondary);
    border-color: var(--gray-200);
}

html.dark-mode .cat-tab {
    background: var(--bg-secondary);
    border-color: var(--gray-200);
    color: var(--gray-600);
}

html.dark-mode .cat-tab:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

html.dark-mode .cat-tab.active {
    background: var(--gray-100);
    color: var(--gray-900);
    border-color: var(--gray-100);
}

html.dark-mode #post-category,
html.dark-mode #post-title,
html.dark-mode #post-content {
    background: var(--bg-primary);
    border-color: var(--gray-200);
    color: var(--gray-900);
}

html.dark-mode #post-category {
    color: var(--gray-600);
}

html.dark-mode .post-title,
html.dark-mode .post-author-name {
    color: var(--gray-900);
}

html.dark-mode .post-content {
    color: var(--gray-600);
}

html.dark-mode .post-action-btn {
    background: var(--bg-secondary);
    border-color: var(--gray-200);
    color: var(--gray-500);
}

html.dark-mode .post-action-btn:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

html.dark-mode .login-btn {
    background: var(--bg-secondary);
    border-color: var(--gray-200);
    color: var(--gray-700);
}

html.dark-mode .login-btn:hover {
    background: var(--gray-100);
}

html.dark-mode .post-category-badge {
    background: var(--gray-100);
    color: var(--gray-600);
}

html.dark-mode .auth-login-btn {
    background: var(--gray-100);
    color: var(--gray-900);
    border-color: var(--gray-100);
}

html.dark-mode .post-submit-btn {
    background: var(--gray-100);
    color: var(--gray-900);
}

html.dark-mode .post-submit-btn:hover {
    background: var(--gray-200);
}

html.dark-mode .modal-close {
    background: var(--gray-100);
    color: var(--gray-600);
}

html.dark-mode .modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

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

@media (max-width: 640px) {
    .post-options {
        flex-direction: column;
        align-items: stretch;
    }

    .post-submit-btn {
        width: 100%;
        justify-content: center;
    }

    .category-tabs {
        margin: 0 -1rem;
        padding: 0 1rem 0.5rem;
    }

    .login-modal-content {
        padding: 2rem 1.5rem;
    }

    .post-card {
        padding: 1.25rem;
    }

    .new-post-card {
        padding: 1.25rem;
    }
}