* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 40px);
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    font-size: 24px;
    font-weight: 600;
}

.session-info {
    display: flex;
    gap: 20px;
    font-size: 14px;
}

.session-info strong {
    font-weight: 600;
}

.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

.panel {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid #e9ecef;
}

.panel h2 {
    margin-bottom: 20px;
    color: #495057;
    font-size: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #495057;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group button {
    margin-top: 8px;
    padding: 6px 12px;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.form-group button:hover {
    background: #5a6268;
}

.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.caselet-content {
    background: white;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #dee2e6;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 600px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
}

.message {
    margin-bottom: 15px;
    padding: 12px 16px;
    border-radius: 8px;
    max-width: 80%;
    word-wrap: break-word;
}

.message.system {
    background: #e7f3ff;
    color: #004085;
    margin: 0 auto;
    text-align: center;
    max-width: 100%;
}

.message.user {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-left: auto;
}

.message.assistant {
    background: white;
    border: 1px solid #dee2e6;
    margin-right: auto;
}

.chat-input-container {
    border-top: 1px solid #dee2e6;
    padding: 15px;
    background: white;
}

.chat-input-container textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    margin-bottom: 10px;
}

.chat-input-container textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
}

.word-count {
    color: #6c757d;
    font-size: 12px;
}

.results-content {
    background: white;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.competency-score {
    margin-bottom: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.competency-score h3 {
    margin-bottom: 10px;
    color: #495057;
}

.score-badge {
    display: inline-block;
    padding: 4px 12px;
    background: #667eea;
    color: white;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-left: 10px;
}

.status-bar {
    background: #f8f9fa;
    padding: 12px 30px;
    border-top: 1px solid #dee2e6;
    font-size: 14px;
    color: #6c757d;
}

.status-bar.success {
    background: #d4edda;
    color: #155724;
}

.status-bar.error {
    background: #f8d7da;
    color: #721c24;
}

.status-bar.info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}