:root {
    --background-color: #f4f7f9;
    --text-color: #333;
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --card-background: #ffffff;
    --border-color: #e6e9ec;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 1rem;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 768px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--primary-color);
}

header p {
    font-size: 1.1rem;
    color: #7f8c8d;
}

#restaurant-selector {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    gap: 0.5rem;
}

.restaurant-button {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 50px;
}

.restaurant-button:hover {
    background-color: #f8f9fa;
}

.restaurant-button.active {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}

#menu-container {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px var(--shadow-color);
}

#menu-header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

#menu-header h2 {
    font-size: 2rem;
    margin: 0;
    color: var(--primary-color);
}

#menu-header p {
    color: #7f8c8d;
    font-size: 1rem;
}

.menu-category {
    margin-bottom: 2.5rem;
}

.menu-category:last-child {
    margin-bottom: 0;
}

.menu-category h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.menu-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.menu-item:first-of-type {
    padding-top: 0;
}

.menu-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.menu-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.menu-item .diets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.diet-tag {
    display: inline-block;
    padding: 0.3em 0.6em;
    font-size: 0.8rem;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
    color: #fff;
    background-color: #6c757d;
}

.diet-tag.g { background-color: #E67E22; } /* Gluten-free */
.diet-tag.l { background-color: #27AE60; } /* Lactose-free */
.diet-tag.m { background-color: #C0392B; } /* Milk-free */
.diet-tag.ve { background-color: #16A085; } /* Vegan */
.diet-tag.vl { background-color: #2980B9; } /* Low-lactose */


.menu-item .allergens {
    font-size: 0.875rem;
    color: #95a5a6;
}

#error-container {
    text-align: center;
    padding: 2rem;
    background-color: #f8d7da;
    color: #842029;
    border: 1px solid #f5c2c7;
    border-radius: 0.25rem;
    display: none; /* Hidden by default */
}

.about-container {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    padding-bottom: 2.5rem;
    box-shadow: 0 8px 32px var(--shadow-color);
    text-align: center;
}

.about-container p {
    text-align: left;
}



footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: #95a5a6;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    body {
        padding: 0.5rem;
    }
    .restaurant-button {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    #menu-container {
        padding: 1rem;
    }
    header h1 {
        font-size: 2rem;
    }
    #menu-header h2 {
        font-size: 1.5rem;
    }
}