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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
}

#root {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.app-header {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.app-header h1 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.week-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.week-navigation button {
    padding: 8px 16px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.week-navigation button:hover {
    background: #2980b9;
}

.week-view {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.day-column {
    background: white;
    border-radius: 8px;
    padding: 10px;
    min-height: 500px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.day-header {
    font-weight: bold;
    padding: 10px;
    background: #3498db;
    color: white;
    border-radius: 4px;
    margin-bottom: 10px;
    text-align: center;
}

.appointment-card {
    background: #fff;
    border-left: 4px solid #3498db;
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
    cursor: move;
    transition: transform 0.2s;
}

.appointment-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.15);
}

.appointment-time {
    font-size: 14px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.appointment-client {
    font-size: 13px;
    color: #555;
    margin-bottom: 5px;
}

.appointment-resources {
    font-size: 12px;
    color: #7f8c8d;
}

.add-appointment-btn {
    width: 100%;
    padding: 10px;
    background: #2ecc71;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
    transition: background 0.3s;
}

.add-appointment-btn:hover {
    background: #27ae60;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: opacity 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 5px;
}

.resource-tag {
    background: #ecf0f1;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11px;
    color: #2c3e50;
}