:root {
    --primary-color: #d4afb9;
    --secondary-color: #7c4d6e;
    --accent-color: #f2d0a9;
    --text-color: #333;
    --light-bg: #f9f5f6;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    margin: 0;
    padding: 0;
}

.booking-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

h1 {
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.greska {
    background-color: #ffebee;
    color: var(--error-color);
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
}

.potvrda {
    background-color: #e8f5e9;
    color: var(--success-color);
    padding: 1.5rem;
    border-radius: 5px;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input, select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.phone-input {
    display: flex;
    align-items: center;
}

.phone-input span {
    padding: 0.8rem;
    background: #eee;
    border: 1px solid #ddd;
    border-right: none;
    border-radius: 5px 0 0 5px;
}

.phone-input input {
    border-radius: 0 5px 5px 0;
}

button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
}

button:hover {
    background-color: var(--primary-color);
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.5rem;
    margin-top: 1rem;
}

.time-slot {
    position: relative;
}

.time-slot input[type="radio"] {
    opacity: 0;
    position: absolute;
}

.time-slot label {
    display: block;
    padding: 0.5rem;
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.time-slot input[type="radio"]:checked + label {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.time-slot.zauzet label {
    background-color: #eee;
    color: #999;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .booking-container {
        margin: 1rem;
        padding: 1rem;
    }
    
    .time-slots {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
}