/* Tutor Page Specific Styles */

.tutor-main {
    display: flex;
    min-height: 100vh;
    padding-top: 73px;
}

/* Sidebar */
.tutor-sidebar {
    width: 280px;
    background: var(--bg-card);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    margin-bottom: 4px;
}

.sidebar-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.subject-selector h3,
.topic-hints h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.subject-tabs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.subject-tab {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s;
}

.subject-tab:hover {
    background: var(--bg-card-hover);
    color: var(--text);
}

.subject-tab.active {
    background: rgba(37, 99, 235, 0.15);
    border-color: var(--primary);
    color: var(--text);
}

.subject-tab .subject-icon {
    font-size: 1.25rem;
}

.hint-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.hint-chip {
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
}

.hint-chip:hover {
    background: var(--bg-card-hover);
    color: var(--text);
    border-color: var(--primary);
}

.sidebar-footer {
    margin-top: auto;
}

.info-card {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    gap: 12px;
}

.info-icon {
    font-size: 1.5rem;
}

.info-text {
    display: flex;
    flex-direction: column;
}

.info-text strong {
    font-size: 0.875rem;
    margin-bottom: 2px;
}

.info-text span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-dark);
}

.chat-header {
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: var(--bg-card);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.subject-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 99, 235, 0.15);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
}

.syllabus-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message {
    display: flex;
    gap: 16px;
    max-width: 80%;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.assistant-message {
    align-self: flex-start;
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: var(--primary);
}

.message-content {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 16px 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.user-message .message-content {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
}

.message-header {
    margin-bottom: 8px;
}

.message-sender {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-light);
}

.user-message .message-sender {
    color: var(--text);
}

.message-text {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.message-text p {
    margin-bottom: 12px;
}

.message-text p:last-child {
    margin-bottom: 0;
}

.message-text ul {
    margin: 8px 0;
    padding-left: 20px;
}

.message-text li {
    margin-bottom: 4px;
    color: var(--text-muted);
}

.message-text code {
    background: var(--bg-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
}

.message-text pre {
    background: var(--bg-dark);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 12px 0;
}

/* Markdown heading styles */
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4 {
    color: var(--text);
    margin-top: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.message-text h1 {
    font-size: 1.4rem;
}

.message-text h2 {
    font-size: 1.25rem;
}

.message-text h3 {
    font-size: 1.1rem;
    color: var(--primary-light);
}

.message-text h4 {
    font-size: 1rem;
}

/* Ordered lists */
.message-text ol {
    margin: 8px 0;
    padding-left: 24px;
}

.message-text ol li {
    margin-bottom: 6px;
    color: var(--text-muted);
}

/* KaTeX math styling */
.message-text .katex {
    font-size: 1.1em;
    color: var(--accent);
}

.message-text .katex-display {
    margin: 16px 0;
    padding: 12px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 8px;
    overflow-x: auto;
}

.message-text .katex-display>.katex {
    color: var(--text);
}

/* Chat Input */
.chat-input-area {
    padding: 20px 24px;
    background: var(--bg-card);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.input-container {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 12px 16px;
    transition: border-color 0.3s;
}

.input-container:focus-within {
    border-color: var(--primary);
}

.input-container textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    resize: none;
    outline: none;
    max-height: 120px;
}

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

.send-btn {
    width: 44px;
    height: 44px;
    background: var(--gradient-1);
    border: none;
    border-radius: 12px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    flex-shrink: 0;
}

.send-btn:hover {
    transform: scale(1.05);
}

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

.input-hint {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Session Panel */
.session-panel {
    width: 260px;
    background: var(--bg-card);
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.session-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.session-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.session-stat {
    background: var(--bg-dark);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.session-stat .stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-light);
}

.session-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.topics-list h4 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.topics-list ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.topics-list li {
    background: var(--bg-dark);
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.topics-list li.empty-state {
    text-align: center;
    font-style: italic;
}

.session-actions {
    margin-top: auto;
}

.action-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-muted);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s;
}

.action-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

/* Loading State */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .session-panel {
        display: none;
    }
}

@media (max-width: 768px) {
    .tutor-sidebar {
        display: none;
    }

    .chat-messages {
        padding: 16px;
    }

    .message {
        max-width: 95%;
    }
}