@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;600&display=swap');

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #27ae60;
    --background-light: #f8f9fa;
    --text-color: #333;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, var(--background-light) 0%, #e9ecef 100%);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 500px;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

header {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 20px;
    font-weight: 600;
    letter-spacing: 1px;
}

#menu-categories {
    display: flex;
    background-color: var(--background-light);
    border-bottom: 1px solid #e9ecef;
}

.category-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 15px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-color);
    transition: all 0.3s ease;
    position: relative;
}

.category-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.category-btn.active {
    color: var(--secondary-color);
}

.category-btn.active::after {
    width: 100%;
}

.menu-category {
    display: grid;
    gap: 15px;
    padding: 20px;
}

.menu-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background-color: var(--background-light);
    border-radius: 10px;
    transition: transform 0.2s ease;
}

.menu-item:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.menu-item h3 {
    font-weight: 600;
    color: var(--primary-color);
}

.menu-item .price {
    font-weight: 600;
    color: var(--accent-color);
}

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

.sandwich-header {
    background-color: var(--background-light);
    padding: 10px;
    border-radius: 5px 5px 0 0;
}

.sandwich-header h3 {
    margin: 0;
    font-size: 1.1em;
}

.sandwich-variants {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background-color: white;
    border-radius: 0 0 5px 5px;
    overflow: hidden;
}

.sandwich-variant {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    transition: background-color 0.2s ease;
}

.sandwich-variant:not(:last-child) {
    border-bottom: 1px solid var(--background-light);
}

.sandwich-variant:hover {
    background-color: var(--background-light);
}

.sandwich-name {
    font-weight: 500;
}

.sandwich-variant .price {
    font-weight: 600;
    color: var(--accent-color);

}

.hidden {
    display: none;
}

@media (max-width: 600px) {
    body {
        align-items: flex-start;
        padding: 10px 0;
    }

    .container {
        width: 100%;
        max-width: 100%;
        margin: 0;
        border-radius: 0;
        box-shadow: none;
    }

    #menu-categories {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 10px 0;
    }

    .category-btn {
        flex: 0 0 auto;
        scroll-snap-align: start;
        padding: 12px 20px;
        margin: 0 5px;
        white-space: nowrap;
        border-radius: 20px;
        background-color: var(--background-light);
        color: var(--text-color);
        transition: all 0.3s ease;
    }

    .category-btn.active {
        background-color: var(--secondary-color);
        color: white;
    }

    .menu-category {
        padding: 15px;
        gap: 15px;
    }

    .menu-item {
        padding: 15px;
        background-color: white;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .sandwich-group {
        margin-bottom: 15px;
        background-color: white;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        overflow: hidden;
    }

    .sandwich-header {
        background-color: var(--background-light);
        padding: 12px 15px;
        border-bottom: 1px solid #e9ecef;
    }

    .sandwich-header h3 {
        margin: 0;
        font-size: 1em;
        color: var(--primary-color);
    }

    .sandwich-variants {
        background-color: white;
    }

    .sandwich-variant {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 15px;
        border-bottom: 1px solid var(--background-light);
    }

    .sandwich-variant:last-child {
        border-bottom: none;
    }

    .sandwich-name {
        font-weight: 500;
        color: var(--text-color);
    }

    .sandwich-variant .price {
        font-weight: 600;
        color: var(--accent-color);
    }
}