.pm-booking-form {
    max-width: 900px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.pm-step {
    display: none;
    padding: 20px 0;
}

.pm-step-active {
    display: block;
}

.pm-step-completed h3 {
    color: #28a745;
}

.pm-step h3 {
    margin: 0 0 20px;
    font-size: 20px;
    color: #333;
}

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

.pm-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.pm-input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.pm-input:focus {
    outline: none;
    border-color: #007bff;
}

.pm-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.pm-list-item {
    padding: 15px;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
}

.pm-list-item:hover {
    background: #e9ecef;
    border-color: #007bff;
}

.pm-list-item.pm-selected {
    background: #007bff;
    color: #fff;
    border-color: #0056b3;
}

.pm-type-select {
    display: flex;
    gap: 15px;
}

.pm-type-option {
    flex: 1;
    padding: 20px;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
}

.pm-type-option input[type="radio"] {
    display: none;
}

.pm-type-option:hover {
    background: #e9ecef;
    border-color: #007bff;
}

.pm-type-option input[type="radio"]:checked + span {
    font-weight: bold;
}

.pm-type-option:has(input[type="radio"]:checked) {
    background: #007bff;
    color: #fff;
    border-color: #0056b3;
}

.pm-calendar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.pm-teacher-message {
    background: #fff9e6;
    border-left: 4px solid #ffc107;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 10px;
}

.pm-teacher-message h3,
.pm-teacher-message h4,
.pm-teacher-message h5 {
    margin-top: 0;
    color: #856404;
}

.pm-teacher-message p {
    margin: 10px 0;
    color: #666;
}

.pm-teacher-message ul,
.pm-teacher-message ol {
    margin: 10px 0;
    padding-left: 25px;
    color: #666;
}

.pm-day-column {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.pm-day-column:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.pm-day-header {
    padding: 16px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 15px;
}

.pm-day-name {
    font-size: 16px;
    font-weight: 700;
}

.pm-day-date {
    font-size: 13px;
    opacity: 0.95;
}

.pm-slots-list {
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
}

.pm-slot-btn {
    padding: 12px 8px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: #495057;
    transition: all 0.2s ease;
    text-align: center;
}

.pm-slot-btn:hover {
    background: #e9ecef;
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.15);
}

.pm-slot-btn.pm-selected {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.3);
}

.pm-button {
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.pm-button-primary {
    background: #007bff;
    color: #fff;
}

.pm-button-primary:hover {
    background: #0056b3;
}

.pm-confirmation {
    text-align: center;
    padding: 60px 20px;
}

.pm-success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: #28a745;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.pm-confirmation h2 {
    color: #28a745;
    margin-bottom: 15px;
}

.pm-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.pm-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.pm-empty {
    padding: 30px;
    text-align: center;
    color: #999;
}

.pm-notice {
    padding: 15px;
    border-radius: 4px;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .pm-booking-form {
        padding: 20px;
        margin: 20px 10px;
    }
    
    .pm-calendar {
        gap: 15px;
    }
    
    .pm-day-header {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .pm-slots-list {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 8px;
        padding: 12px;
    }
    
    .pm-slot-btn {
        padding: 10px 6px;
        font-size: 13px;
    }
    
    .pm-list {
        grid-template-columns: 1fr;
    }
    
    .pm-type-select {
        flex-direction: column;
    }
}

.pm-teacher-message {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.pm-teacher-message h1, 
.pm-teacher-message h2, 
.pm-teacher-message h3 {
    color: #fff;
    margin-top: 0;
}

.pm-teacher-message ul, 
.pm-teacher-message ol {
    margin: 10px 0;
    padding-left: 20px;
}

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