.pcs-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.pcs-header {
    text-align: center;
    margin-bottom: 3rem;
}

.pcs-header h1 {
    color: #2d3748;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.pcs-header p {
    color: #4a5568;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.pcs-progress-bar {
    display: flex;
    justify-content: space-between;
    margin: 3rem 0;
    position: relative;
}

.pcs-progress-bar::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 4px;
    background: #e2e8f0;
    z-index: 1;
}

.pcs-progress-line {
    position: absolute;
    top: 20px;
    left: 0;
    height: 4px;
    background: #4299e1;
    z-index: 2;
    transition: width 0.3s ease;
}

.pcs-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 3;
    position: relative;
}

.pcs-step-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: white;
    border: 4px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #718096;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.pcs-step.active .pcs-step-circle {
    background: #4299e1;
    border-color: #4299e1;
    color: white;
}

.pcs-step.completed .pcs-step-circle {
    background: #48bb78;
    border-color: #48bb78;
    color: white;
}

.pcs-step-label {
    font-size: 0.9rem;
    color: #718096;
    font-weight: 500;
    text-align: center;
}

.pcs-step.active .pcs-step-label {
    color: #2d3748;
}

.pcs-step-content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.pcs-input-group {
    margin-bottom: 1.5rem;
}

.pcs-input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2d3748;
    font-weight: 500;
}

.pcs-input-group textarea,
.pcs-input-group input[type="text"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.pcs-input-group textarea:focus,
.pcs-input-group input[type="text"]:focus {
    outline: none;
    border-color: #4299e1;
}

.pcs-input-group textarea {
    min-height: 150px;
    resize: vertical;
}

.pcs-button {
    background: #4299e1;
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

.pcs-button:hover {
    background: #3182ce;
}

.pcs-button:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
}

.pcs-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.pcs-topic-box {
    padding: 1rem;
    background: #f7fafc;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-weight: 500;
}

.pcs-topic-box:hover {
    border-color: #4299e1;
    background: #ebf8ff;
}

.pcs-topic-box.selected {
    background: #bee3f8;
    border-color: #4299e1;
    color: #2c5282;
}

.pcs-pillar-card {
    background: #f7fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.pcs-pillar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.pcs-results {
    background: #f0fff4;
    border: 2px solid #c6f6d5;
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.pcs-loading {
    display: none;
    text-align: center;
    padding: 2rem;
}

.pcs-loading.active {
    display: block;
}

.pcs-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e2e8f0;
    border-top: 4px solid #4299e1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.pcs-error {
    background: #fed7d7;
    border: 2px solid #fc8181;
    color: #c53030;
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
}

.pcs-success {
    background: #c6f6d5;
    border: 2px solid #9ae6b4;
    color: #276749;
    padding: 1rem;
    border-radius: 6px;
    margin: 1rem 0;
}