:root {
    --primary-color: #2563eb;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 1rem;
    line-height: 1.5;
}

.container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: white;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
}

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

.header h1 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin: 0;
}

.user-info {
    margin: 1rem 0 2rem 0;
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    flex-direction: row;
    flex-wrap: nowrap;
}

.form-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
}

.form-group label {
    font-size: 0.875rem;
    color: var(--text-color);
    white-space: nowrap;
    margin-right: 0.5rem;
}

.form-group select,
.form-group input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    min-width: 120px;
    flex: 1;
    max-width: 160px;
}

.date-section {
    margin-bottom: 1.5rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
}

.date-header {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-align: center;
}

.meals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    align-items: start;
    justify-items: start;
}

.meal-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meal-checkbox input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 0.25rem;
    border: 2px solid var(--border-color);
    cursor: pointer;
}

.meal-checkbox label {
    font-size: 0.875rem;
    cursor: pointer;
}

.submit-button {
    display: block;
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.submit-button:hover {
    background-color: #1d4ed8;
}

.submit-button:disabled {
    background-color: #93c5fd;
    cursor: not-allowed;
}

.success-message {
    background-color: #dcfce7;
    color: #166534;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.error-message {
    background-color: #fee2e2;
    color: #991b1b;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.nav-buttons {
    text-align: center;
    margin-bottom: 5px;
    display: flex;
    justify-content: center;
    gap: 10px;
    max-width: 600px;
    margin: 0 auto 20px auto;
    margin-top: 5px;
}

.nav-button {
    flex: 1;
    max-width: 150px;
    padding: 6px 10px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9em;
    text-align: center;
}

.nav-button:hover {
    background-color: #1d4ed8;
}

@media (max-width: 640px) {
    .nav-buttons {
        flex-wrap: wrap;
        gap: 5px;
        margin-top: 15px;
    }

    .nav-button {
        font-size: 0.8em;
        padding: 5px 8px;
    }
    .container {
        margin: 0.5rem;
        padding: 1rem;
        width: auto;
    }

    .user-info {
        flex-direction: column;
        align-items: stretch;
        margin-bottom: 2rem;
        gap: 1.5rem;
    }

    .form-group {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 0.5rem;
    }

    .form-group label {
        margin-right: 0;
    }

    .form-group select,
    .form-group input {
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    .meals-grid {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }

    .meal-checkbox {
        width: 100%;
        padding-left: 1rem;
    }

    .meal-checkbox label {
        flex: 1;
    }

    .date-section {
        padding: 0.75rem;
    }
}

#nom {
    text-transform: uppercase;
}