:root {
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --bg-light: #f8f9fa;
    --text-dark: #2c3e50;
    --text-muted: #7f8c8d;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
    --radius: 12px;
}

.afspraak-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header & Progress */
.afspraak-header {
    text-align: center;
    margin-bottom: 40px;
}

.afspraak-progress {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.progress-step {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--text-muted);
}

.progress-step.active {
    background: var(--primary-color);
    color: var(--white);
}

/* Steps */
.booking-step {
    display: none;
}

.booking-step.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.service-card {
    padding: 20px;
    border: 2px solid #eee;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.service-card:hover { border-color: var(--primary-color); background: #fafdff; }
.service-card.selected { border-color: var(--primary-color); background: #f0f7ff; box-shadow: 0 4px 10px rgba(52, 152, 219, 0.2); }

.service-card h3 { margin: 0 0 10px 0; font-size: 1.2rem; }
.service-card .description { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 15px; }

.service-meta {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
    font-size: 0.9rem;
}

/* Slots */
.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.slot-item {
    padding: 10px;
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
}

.slot-item:hover { background: #f0f0f0; }
.slot-item.selected { background: var(--primary-color); color: white; border-color: var(--primary-color); }

/* Form Elements */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

/* Buttons */
.afspraak-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.btn {
    padding: 12px 25px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s;
}

#next-btn, #submit-btn { background: var(--primary-color); color: white; }
#next-btn:hover:not(:disabled) { background: var(--primary-hover); }
#next-btn:disabled { background: #ccc; cursor: not-allowed; }

#prev-btn { background: #eee; color: #555; }
#prev-btn:hover { background: #ddd; }