/* ===================================
   BrainFusion - Philosophischer Salon
   Stylesheet für das Diskussionsforum
   =================================== */

/* --- Salon Hero --- */
.salon-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
}

.salon-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
}

.salon-hero .subtitle {
    max-width: 600px;
    margin: 0 auto;
}

/* --- Auth Section --- */
.auth-section {
    padding: 2rem;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.auth-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--card-border);
}

.auth-status .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), #00ffaa);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-bg);
}

.auth-status .username {
    color: var(--accent-color);
    font-weight: 600;
}

.auth-btn {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.auth-btn:hover {
    background: var(--accent-color);
    color: var(--primary-bg);
}

.auth-btn.logout {
    border-color: #ff6b6b;
    color: #ff6b6b;
}

.auth-btn.logout:hover {
    background: #ff6b6b;
    color: var(--primary-bg);
}

/* --- Topics Section --- */
.topics-section {
    padding: 4rem 2rem;
}

.topics-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--accent-color), #00ffaa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.topic-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), #00ffaa);
    transform: scaleX(0);
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 40px var(--accent-glow);
}

.topic-card:hover::before {
    transform: scaleX(1);
}

.topic-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.topic-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.topic-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.topic-stats {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--card-border);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.topic-stats span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* --- Discussion Section --- */
.discussion-section {
    padding: 2rem;
    min-height: 60vh;
}

.back-button {
    background: transparent;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.5rem 0;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.back-button:hover {
    color: #00ffaa;
}

.topic-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--card-border);
}

.topic-header .topic-icon {
    font-size: 4rem;
}

.topic-header h2 {
    font-size: 2rem;
    margin: 1rem 0;
    background: linear-gradient(135deg, var(--accent-color), #00ffaa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.topic-header p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* --- New Post Container --- */
.new-post-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.new-post-container h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.new-post-container textarea {
    width: 100%;
    min-height: 120px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.new-post-container textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.new-post-container textarea::placeholder {
    color: var(--text-secondary);
}

/* --- Posts Container --- */
.posts-container {
    max-width: 800px;
    margin: 0 auto;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.post-card:hover {
    border-color: rgba(0, 217, 255, 0.4);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.post-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), #00ffaa);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-bg);
    font-size: 1.1rem;
}

.post-meta {
    flex: 1;
}

.post-author {
    font-weight: 600;
    color: var(--text-primary);
}

.post-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

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

.post-action-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem;
    border-radius: 5px;
    transition: var(--transition);
}

.post-action-btn:hover {
    color: var(--accent-color);
    background: rgba(0, 217, 255, 0.1);
}

.post-action-btn.voted {
    color: var(--accent-color);
}

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

/* --- Reply Container --- */
.replies-container {
    margin-left: 2rem;
    padding-left: 1rem;
    border-left: 2px solid var(--card-border);
    margin-top: 1rem;
}

.reply-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(0, 217, 255, 0.1);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.reply-form {
    margin-top: 1rem;
    display: none;
}

.reply-form.active {
    display: block;
}

.reply-form textarea {
    width: 100%;
    min-height: 80px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    margin-bottom: 0.5rem;
}

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

.reply-form-actions {
    display: flex;
    gap: 0.5rem;
}

.reply-form-actions button {
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.reply-submit {
    background: var(--accent-color);
    border: none;
    color: var(--primary-bg);
    font-weight: 600;
}

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

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 2rem;
}

.modal-content {
    background: var(--secondary-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 400px;
    width: 100%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.modal-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

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

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

.form-group input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.form-message {
    text-align: center;
    font-size: 0.9rem;
    min-height: 1.5rem;
}

.form-message.error {
    color: #ff6b6b;
}

.form-message.success {
    color: #00ffaa;
}

/* --- Loading State --- */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--card-border);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* --- Topic Introduction --- */
.topic-introduction {
    margin-top: 1.5rem;
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.08) 0%, rgba(138, 43, 226, 0.08) 100%);
    border-left: 3px solid var(--accent);
    border-radius: 0 12px 12px 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-style: italic;
}

.intro-text em {
    color: var(--accent);
    font-style: normal;
    font-weight: 500;
}

.intro-question {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 8px;
    margin: 0;
}

.intro-question strong {
    color: var(--accent);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .salon-hero {
        padding: 6rem 1rem 3rem;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .topic-card {
        padding: 1.5rem;
    }
    
    .replies-container {
        margin-left: 1rem;
    }
    
    .modal-content {
        padding: 1.5rem;
    }
    
    .post-header {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .auth-container {
        flex-direction: column;
    }
    
    .auth-status {
        width: 100%;
        justify-content: center;
    }
    
    .post-actions {
        flex-wrap: wrap;
    }
}